+++ /dev/null
-From aa838896d87af561a33ecefea1caa4c15a68bc47 Mon Sep 17 00:00:00 2001
-From: Joe Perches <joe@perches.com>
-Date: Wed, 16 Sep 2020 13:40:39 -0700
-Subject: drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functions
-
-From: Joe Perches <joe@perches.com>
-
-commit aa838896d87af561a33ecefea1caa4c15a68bc47 upstream.
-
-Convert the various sprintf fmaily calls in sysfs device show functions
-to sysfs_emit and sysfs_emit_at for PAGE_SIZE buffer safety.
-
-Done with:
-
-$ spatch -sp-file sysfs_emit_dev.cocci --in-place --max-width=80 .
-
-And cocci script:
-
-$ cat sysfs_emit_dev.cocci
-@@
-identifier d_show;
-identifier dev, attr, buf;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- return
-- sprintf(buf,
-+ sysfs_emit(buf,
- ...);
- ...>
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- return
-- snprintf(buf, PAGE_SIZE,
-+ sysfs_emit(buf,
- ...);
- ...>
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- return
-- scnprintf(buf, PAGE_SIZE,
-+ sysfs_emit(buf,
- ...);
- ...>
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-expression chr;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- return
-- strcpy(buf, chr);
-+ sysfs_emit(buf, chr);
- ...>
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-identifier len;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- len =
-- sprintf(buf,
-+ sysfs_emit(buf,
- ...);
- ...>
- return len;
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-identifier len;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- len =
-- snprintf(buf, PAGE_SIZE,
-+ sysfs_emit(buf,
- ...);
- ...>
- return len;
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-identifier len;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
- len =
-- scnprintf(buf, PAGE_SIZE,
-+ sysfs_emit(buf,
- ...);
- ...>
- return len;
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-identifier len;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- <...
-- len += scnprintf(buf + len, PAGE_SIZE - len,
-+ len += sysfs_emit_at(buf, len,
- ...);
- ...>
- return len;
-}
-
-@@
-identifier d_show;
-identifier dev, attr, buf;
-expression chr;
-@@
-
-ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ...
-- strcpy(buf, chr);
-- return strlen(buf);
-+ return sysfs_emit(buf, chr);
-}
-
-Signed-off-by: Joe Perches <joe@perches.com>
-Link: https://lore.kernel.org/r/3d033c33056d88bbe34d4ddb62afd05ee166ab9a.1600285923.git.joe@perches.com
-[ Brennan : Regenerated for 4.19 to fix CVE-2022-20166 ]
-Signed-off-by: Brennan Lamoreaux <blamoreaux@vmware.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/base/arch_topology.c | 2 -
- drivers/base/cacheinfo.c | 18 +++++------
- drivers/base/core.c | 8 ++---
- drivers/base/cpu.c | 30 +++++++++----------
- drivers/base/firmware_loader/fallback.c | 2 -
- drivers/base/memory.c | 24 +++++++--------
- drivers/base/node.c | 8 ++---
- drivers/base/platform.c | 2 -
- drivers/base/power/sysfs.c | 50 ++++++++++++++++----------------
- drivers/base/soc.c | 8 ++---
- 10 files changed, 76 insertions(+), 76 deletions(-)
-
---- a/drivers/base/arch_topology.c
-+++ b/drivers/base/arch_topology.c
-@@ -44,7 +44,7 @@ static ssize_t cpu_capacity_show(struct
- {
- struct cpu *cpu = container_of(dev, struct cpu, dev);
-
-- return sprintf(buf, "%lu\n", topology_get_cpu_scale(NULL, cpu->dev.id));
-+ return sysfs_emit(buf, "%lu\n", topology_get_cpu_scale(NULL, cpu->dev.id));
- }
-
- static ssize_t cpu_capacity_store(struct device *dev,
---- a/drivers/base/cacheinfo.c
-+++ b/drivers/base/cacheinfo.c
-@@ -372,7 +372,7 @@ static ssize_t size_show(struct device *
- {
- struct cacheinfo *this_leaf = dev_get_drvdata(dev);
-
-- return sprintf(buf, "%uK\n", this_leaf->size >> 10);
-+ return sysfs_emit(buf, "%uK\n", this_leaf->size >> 10);
- }
-
- static ssize_t shared_cpumap_show_func(struct device *dev, bool list, char *buf)
-@@ -402,11 +402,11 @@ static ssize_t type_show(struct device *
-
- switch (this_leaf->type) {
- case CACHE_TYPE_DATA:
-- return sprintf(buf, "Data\n");
-+ return sysfs_emit(buf, "Data\n");
- case CACHE_TYPE_INST:
-- return sprintf(buf, "Instruction\n");
-+ return sysfs_emit(buf, "Instruction\n");
- case CACHE_TYPE_UNIFIED:
-- return sprintf(buf, "Unified\n");
-+ return sysfs_emit(buf, "Unified\n");
- default:
- return -EINVAL;
- }
-@@ -420,11 +420,11 @@ static ssize_t allocation_policy_show(st
- int n = 0;
-
- if ((ci_attr & CACHE_READ_ALLOCATE) && (ci_attr & CACHE_WRITE_ALLOCATE))
-- n = sprintf(buf, "ReadWriteAllocate\n");
-+ n = sysfs_emit(buf, "ReadWriteAllocate\n");
- else if (ci_attr & CACHE_READ_ALLOCATE)
-- n = sprintf(buf, "ReadAllocate\n");
-+ n = sysfs_emit(buf, "ReadAllocate\n");
- else if (ci_attr & CACHE_WRITE_ALLOCATE)
-- n = sprintf(buf, "WriteAllocate\n");
-+ n = sysfs_emit(buf, "WriteAllocate\n");
- return n;
- }
-
-@@ -436,9 +436,9 @@ static ssize_t write_policy_show(struct
- int n = 0;
-
- if (ci_attr & CACHE_WRITE_THROUGH)
-- n = sprintf(buf, "WriteThrough\n");
-+ n = sysfs_emit(buf, "WriteThrough\n");
- else if (ci_attr & CACHE_WRITE_BACK)
-- n = sprintf(buf, "WriteBack\n");
-+ n = sysfs_emit(buf, "WriteBack\n");
- return n;
- }
-
---- a/drivers/base/core.c
-+++ b/drivers/base/core.c
-@@ -994,7 +994,7 @@ ssize_t device_show_ulong(struct device
- char *buf)
- {
- struct dev_ext_attribute *ea = to_ext_attr(attr);
-- return snprintf(buf, PAGE_SIZE, "%lx\n", *(unsigned long *)(ea->var));
-+ return sysfs_emit(buf, "%lx\n", *(unsigned long *)(ea->var));
- }
- EXPORT_SYMBOL_GPL(device_show_ulong);
-
-@@ -1019,7 +1019,7 @@ ssize_t device_show_int(struct device *d
- {
- struct dev_ext_attribute *ea = to_ext_attr(attr);
-
-- return snprintf(buf, PAGE_SIZE, "%d\n", *(int *)(ea->var));
-+ return sysfs_emit(buf, "%d\n", *(int *)(ea->var));
- }
- EXPORT_SYMBOL_GPL(device_show_int);
-
-@@ -1040,7 +1040,7 @@ ssize_t device_show_bool(struct device *
- {
- struct dev_ext_attribute *ea = to_ext_attr(attr);
-
-- return snprintf(buf, PAGE_SIZE, "%d\n", *(bool *)(ea->var));
-+ return sysfs_emit(buf, "%d\n", *(bool *)(ea->var));
- }
- EXPORT_SYMBOL_GPL(device_show_bool);
-
-@@ -1273,7 +1273,7 @@ static ssize_t online_show(struct device
- device_lock(dev);
- val = !dev->offline;
- device_unlock(dev);
-- return sprintf(buf, "%u\n", val);
-+ return sysfs_emit(buf, "%u\n", val);
- }
-
- static ssize_t online_store(struct device *dev, struct device_attribute *attr,
---- a/drivers/base/cpu.c
-+++ b/drivers/base/cpu.c
-@@ -156,7 +156,7 @@ static ssize_t show_crash_notes(struct d
- * operation should be safe. No locking required.
- */
- addr = per_cpu_ptr_to_phys(per_cpu_ptr(crash_notes, cpunum));
-- rc = sprintf(buf, "%Lx\n", addr);
-+ rc = sysfs_emit(buf, "%Lx\n", addr);
- return rc;
- }
- static DEVICE_ATTR(crash_notes, 0400, show_crash_notes, NULL);
-@@ -167,7 +167,7 @@ static ssize_t show_crash_notes_size(str
- {
- ssize_t rc;
-
-- rc = sprintf(buf, "%zu\n", sizeof(note_buf_t));
-+ rc = sysfs_emit(buf, "%zu\n", sizeof(note_buf_t));
- return rc;
- }
- static DEVICE_ATTR(crash_notes_size, 0400, show_crash_notes_size, NULL);
-@@ -264,7 +264,7 @@ static ssize_t print_cpus_offline(struct
- nr_cpu_ids, total_cpus-1);
- }
-
-- n += snprintf(&buf[n], len - n, "\n");
-+ n += sysfs_emit(&buf[n], "\n");
- return n;
- }
- static DEVICE_ATTR(offline, 0444, print_cpus_offline, NULL);
-@@ -280,7 +280,7 @@ static ssize_t print_cpus_isolated(struc
-
- cpumask_andnot(isolated, cpu_possible_mask,
- housekeeping_cpumask(HK_FLAG_DOMAIN));
-- n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(isolated));
-+ n = sysfs_emit(buf, "%*pbl\n", cpumask_pr_args(isolated));
-
- free_cpumask_var(isolated);
-
-@@ -294,7 +294,7 @@ static ssize_t print_cpus_nohz_full(stru
- {
- int n = 0, len = PAGE_SIZE-2;
-
-- n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(tick_nohz_full_mask));
-+ n = sysfs_emit(buf, "%*pbl\n", cpumask_pr_args(tick_nohz_full_mask));
-
- return n;
- }
-@@ -328,7 +328,7 @@ static ssize_t print_cpu_modalias(struct
- ssize_t n;
- u32 i;
-
-- n = sprintf(buf, "cpu:type:" CPU_FEATURE_TYPEFMT ":feature:",
-+ n = sysfs_emit(buf, "cpu:type:" CPU_FEATURE_TYPEFMT ":feature:",
- CPU_FEATURE_TYPEVAL);
-
- for (i = 0; i < MAX_CPU_FEATURES; i++)
-@@ -520,56 +520,56 @@ static void __init cpu_dev_register_gene
- ssize_t __weak cpu_show_meltdown(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_spectre_v1(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_spectre_v2(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_spec_store_bypass(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_l1tf(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_mds(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_tsx_async_abort(struct device *dev,
- struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_itlb_multihit(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_srbds(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "Not affected\n");
-+ return sysfs_emit(buf, "Not affected\n");
- }
-
- ssize_t __weak cpu_show_mmio_stale_data(struct device *dev,
---- a/drivers/base/firmware_loader/fallback.c
-+++ b/drivers/base/firmware_loader/fallback.c
-@@ -215,7 +215,7 @@ static ssize_t firmware_loading_show(str
- loading = fw_sysfs_loading(fw_sysfs->fw_priv);
- mutex_unlock(&fw_lock);
-
-- return sprintf(buf, "%d\n", loading);
-+ return sysfs_emit(buf, "%d\n", loading);
- }
-
- /* one pages buffer should be mapped/unmapped only once */
---- a/drivers/base/memory.c
-+++ b/drivers/base/memory.c
-@@ -121,7 +121,7 @@ static ssize_t show_mem_start_phys_index
- unsigned long phys_index;
-
- phys_index = mem->start_section_nr / sections_per_block;
-- return sprintf(buf, "%08lx\n", phys_index);
-+ return sysfs_emit(buf, "%08lx\n", phys_index);
- }
-
- /*
-@@ -145,7 +145,7 @@ static ssize_t show_mem_removable(struct
- }
-
- out:
-- return sprintf(buf, "%d\n", ret);
-+ return sysfs_emit(buf, "%d\n", ret);
- }
-
- /*
-@@ -163,17 +163,17 @@ static ssize_t show_mem_state(struct dev
- */
- switch (mem->state) {
- case MEM_ONLINE:
-- len = sprintf(buf, "online\n");
-+ len = sysfs_emit(buf, "online\n");
- break;
- case MEM_OFFLINE:
-- len = sprintf(buf, "offline\n");
-+ len = sysfs_emit(buf, "offline\n");
- break;
- case MEM_GOING_OFFLINE:
-- len = sprintf(buf, "going-offline\n");
-+ len = sysfs_emit(buf, "going-offline\n");
- break;
- default:
-- len = sprintf(buf, "ERROR-UNKNOWN-%ld\n",
-- mem->state);
-+ len = sysfs_emit(buf, "ERROR-UNKNOWN-%ld\n",
-+ mem->state);
- WARN_ON(1);
- break;
- }
-@@ -384,7 +384,7 @@ static ssize_t show_phys_device(struct d
- struct device_attribute *attr, char *buf)
- {
- struct memory_block *mem = to_memory_block(dev);
-- return sprintf(buf, "%d\n", mem->phys_device);
-+ return sysfs_emit(buf, "%d\n", mem->phys_device);
- }
-
- #ifdef CONFIG_MEMORY_HOTREMOVE
-@@ -422,7 +422,7 @@ static ssize_t show_valid_zones(struct d
- */
- if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages,
- &valid_start_pfn, &valid_end_pfn))
-- return sprintf(buf, "none\n");
-+ return sysfs_emit(buf, "none\n");
- start_pfn = valid_start_pfn;
- strcat(buf, page_zone(pfn_to_page(start_pfn))->name);
- goto out;
-@@ -456,7 +456,7 @@ static ssize_t
- print_block_size(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%lx\n", get_memory_block_size());
-+ return sysfs_emit(buf, "%lx\n", get_memory_block_size());
- }
-
- static DEVICE_ATTR(block_size_bytes, 0444, print_block_size, NULL);
-@@ -470,9 +470,9 @@ show_auto_online_blocks(struct device *d
- char *buf)
- {
- if (memhp_auto_online)
-- return sprintf(buf, "online\n");
-+ return sysfs_emit(buf, "online\n");
- else
-- return sprintf(buf, "offline\n");
-+ return sysfs_emit(buf, "offline\n");
- }
-
- static ssize_t
---- a/drivers/base/node.c
-+++ b/drivers/base/node.c
-@@ -69,7 +69,7 @@ static ssize_t node_read_meminfo(struct
- struct sysinfo i;
-
- si_meminfo_node(&i, nid);
-- n = sprintf(buf,
-+ n = sysfs_emit(buf,
- "Node %d MemTotal: %8lu kB\n"
- "Node %d MemFree: %8lu kB\n"
- "Node %d MemUsed: %8lu kB\n"
-@@ -96,7 +96,7 @@ static ssize_t node_read_meminfo(struct
- nid, K(sum_zone_node_page_state(nid, NR_MLOCK)));
-
- #ifdef CONFIG_HIGHMEM
-- n += sprintf(buf + n,
-+ n += sysfs_emit(buf + n,
- "Node %d HighTotal: %8lu kB\n"
- "Node %d HighFree: %8lu kB\n"
- "Node %d LowTotal: %8lu kB\n"
-@@ -106,7 +106,7 @@ static ssize_t node_read_meminfo(struct
- nid, K(i.totalram - i.totalhigh),
- nid, K(i.freeram - i.freehigh));
- #endif
-- n += sprintf(buf + n,
-+ n += sysfs_emit(buf + n,
- "Node %d Dirty: %8lu kB\n"
- "Node %d Writeback: %8lu kB\n"
- "Node %d FilePages: %8lu kB\n"
-@@ -612,7 +612,7 @@ static ssize_t print_nodes_state(enum no
- {
- int n;
-
-- n = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
-+ n = sysfs_emit(buf, "%*pbl",
- nodemask_pr_args(&node_states[state]));
- buf[n++] = '\n';
- buf[n] = '\0';
---- a/drivers/base/platform.c
-+++ b/drivers/base/platform.c
-@@ -927,7 +927,7 @@ static ssize_t driver_override_show(stru
- ssize_t len;
-
- device_lock(dev);
-- len = sprintf(buf, "%s\n", pdev->driver_override);
-+ len = sysfs_emit(buf, "%s\n", pdev->driver_override);
- device_unlock(dev);
- return len;
- }
---- a/drivers/base/power/sysfs.c
-+++ b/drivers/base/power/sysfs.c
-@@ -101,7 +101,7 @@ static const char ctrl_on[] = "on";
- static ssize_t control_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%s\n",
-+ return sysfs_emit(buf, "%s\n",
- dev->power.runtime_auto ? ctrl_auto : ctrl_on);
- }
-
-@@ -127,7 +127,7 @@ static ssize_t runtime_active_time_show(
- int ret;
- spin_lock_irq(&dev->power.lock);
- update_pm_runtime_accounting(dev);
-- ret = sprintf(buf, "%i\n", jiffies_to_msecs(dev->power.active_jiffies));
-+ ret = sysfs_emit(buf, "%i\n", jiffies_to_msecs(dev->power.active_jiffies));
- spin_unlock_irq(&dev->power.lock);
- return ret;
- }
-@@ -140,7 +140,7 @@ static ssize_t runtime_suspended_time_sh
- int ret;
- spin_lock_irq(&dev->power.lock);
- update_pm_runtime_accounting(dev);
-- ret = sprintf(buf, "%i\n",
-+ ret = sysfs_emit(buf, "%i\n",
- jiffies_to_msecs(dev->power.suspended_jiffies));
- spin_unlock_irq(&dev->power.lock);
- return ret;
-@@ -175,7 +175,7 @@ static ssize_t runtime_status_show(struc
- return -EIO;
- }
- }
-- return sprintf(buf, p);
-+ return sysfs_emit(buf, p);
- }
-
- static DEVICE_ATTR_RO(runtime_status);
-@@ -185,7 +185,7 @@ static ssize_t autosuspend_delay_ms_show
- {
- if (!dev->power.use_autosuspend)
- return -EIO;
-- return sprintf(buf, "%d\n", dev->power.autosuspend_delay);
-+ return sysfs_emit(buf, "%d\n", dev->power.autosuspend_delay);
- }
-
- static ssize_t autosuspend_delay_ms_store(struct device *dev,
-@@ -214,11 +214,11 @@ static ssize_t pm_qos_resume_latency_us_
- s32 value = dev_pm_qos_requested_resume_latency(dev);
-
- if (value == 0)
-- return sprintf(buf, "n/a\n");
-+ return sysfs_emit(buf, "n/a\n");
- if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
- value = 0;
-
-- return sprintf(buf, "%d\n", value);
-+ return sysfs_emit(buf, "%d\n", value);
- }
-
- static ssize_t pm_qos_resume_latency_us_store(struct device *dev,
-@@ -258,11 +258,11 @@ static ssize_t pm_qos_latency_tolerance_
- s32 value = dev_pm_qos_get_user_latency_tolerance(dev);
-
- if (value < 0)
-- return sprintf(buf, "auto\n");
-+ return sysfs_emit(buf, "auto\n");
- if (value == PM_QOS_LATENCY_ANY)
-- return sprintf(buf, "any\n");
-+ return sysfs_emit(buf, "any\n");
-
-- return sprintf(buf, "%d\n", value);
-+ return sysfs_emit(buf, "%d\n", value);
- }
-
- static ssize_t pm_qos_latency_tolerance_us_store(struct device *dev,
-@@ -294,8 +294,8 @@ static ssize_t pm_qos_no_power_off_show(
- struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%d\n", !!(dev_pm_qos_requested_flags(dev)
-- & PM_QOS_FLAG_NO_POWER_OFF));
-+ return sysfs_emit(buf, "%d\n", !!(dev_pm_qos_requested_flags(dev)
-+ & PM_QOS_FLAG_NO_POWER_OFF));
- }
-
- static ssize_t pm_qos_no_power_off_store(struct device *dev,
-@@ -323,9 +323,9 @@ static const char _disabled[] = "disable
- static ssize_t wakeup_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%s\n", device_can_wakeup(dev)
-- ? (device_may_wakeup(dev) ? _enabled : _disabled)
-- : "");
-+ return sysfs_emit(buf, "%s\n", device_can_wakeup(dev)
-+ ? (device_may_wakeup(dev) ? _enabled : _disabled)
-+ : "");
- }
-
- static ssize_t wakeup_store(struct device *dev, struct device_attribute *attr,
-@@ -511,7 +511,7 @@ static DEVICE_ATTR_RO(wakeup_prevent_sle
- static ssize_t runtime_usage_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
-- return sprintf(buf, "%d\n", atomic_read(&dev->power.usage_count));
-+ return sysfs_emit(buf, "%d\n", atomic_read(&dev->power.usage_count));
- }
- static DEVICE_ATTR_RO(runtime_usage);
-
-@@ -519,8 +519,8 @@ static ssize_t runtime_active_kids_show(
- struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%d\n", dev->power.ignore_children ?
-- 0 : atomic_read(&dev->power.child_count));
-+ return sysfs_emit(buf, "%d\n", dev->power.ignore_children ?
-+ 0 : atomic_read(&dev->power.child_count));
- }
- static DEVICE_ATTR_RO(runtime_active_kids);
-
-@@ -528,12 +528,12 @@ static ssize_t runtime_enabled_show(stru
- struct device_attribute *attr, char *buf)
- {
- if (dev->power.disable_depth && (dev->power.runtime_auto == false))
-- return sprintf(buf, "disabled & forbidden\n");
-+ return sysfs_emit(buf, "disabled & forbidden\n");
- if (dev->power.disable_depth)
-- return sprintf(buf, "disabled\n");
-+ return sysfs_emit(buf, "disabled\n");
- if (dev->power.runtime_auto == false)
-- return sprintf(buf, "forbidden\n");
-- return sprintf(buf, "enabled\n");
-+ return sysfs_emit(buf, "forbidden\n");
-+ return sysfs_emit(buf, "enabled\n");
- }
- static DEVICE_ATTR_RO(runtime_enabled);
-
-@@ -541,9 +541,9 @@ static DEVICE_ATTR_RO(runtime_enabled);
- static ssize_t async_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
-- return sprintf(buf, "%s\n",
-- device_async_suspend_enabled(dev) ?
-- _enabled : _disabled);
-+ return sysfs_emit(buf, "%s\n",
-+ device_async_suspend_enabled(dev) ?
-+ _enabled : _disabled);
- }
-
- static ssize_t async_store(struct device *dev, struct device_attribute *attr,
---- a/drivers/base/soc.c
-+++ b/drivers/base/soc.c
-@@ -72,13 +72,13 @@ static ssize_t soc_info_get(struct devic
- struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
-
- if (attr == &dev_attr_machine)
-- return sprintf(buf, "%s\n", soc_dev->attr->machine);
-+ return sysfs_emit(buf, "%s\n", soc_dev->attr->machine);
- if (attr == &dev_attr_family)
-- return sprintf(buf, "%s\n", soc_dev->attr->family);
-+ return sysfs_emit(buf, "%s\n", soc_dev->attr->family);
- if (attr == &dev_attr_revision)
-- return sprintf(buf, "%s\n", soc_dev->attr->revision);
-+ return sysfs_emit(buf, "%s\n", soc_dev->attr->revision);
- if (attr == &dev_attr_soc_id)
-- return sprintf(buf, "%s\n", soc_dev->attr->soc_id);
-+ return sysfs_emit(buf, "%s\n", soc_dev->attr->soc_id);
-
- return -EINVAL;
-