mcb: use sysfs_emit_at() instead of scnprintf() in show functions

This change improves clarity and ensures proper bounds checking in
line with the preferred sysfs_emit() API usage for sysfs 'show'
functions. The PAGE_SIZE check is now handled internally by the helper.

No functional change intended.

Signed-off-by: Abhinav Ananthu <abhinav.ogl@gmail.com>
Signed-off-by: Johannes Thumshirn <jth@kernel.org>
Reviewed-by: Johannes Thumshirn <jth@kernel.org>
Link: https://lore.kernel.org/r/20250707074720.40051-2-jth@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index 9b8c40a6459a7045c31431057c22da9da1e329e4..c1367223e71a0fdb3e9f735795c6b798442b15ce 100644 (file)
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -107,7 +107,7 @@ static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
 {
        struct mcb_bus *bus = to_mcb_bus(dev);
 
-       return scnprintf(buf, PAGE_SIZE, "%d\n", bus->revision);
+       return sysfs_emit(buf, "%d\n", bus->revision);
 }
 static DEVICE_ATTR_RO(revision);
 
@@ -116,7 +116,7 @@ static ssize_t model_show(struct device *dev, struct device_attribute *attr,
 {
        struct mcb_bus *bus = to_mcb_bus(dev);
 
-       return scnprintf(buf, PAGE_SIZE, "%c\n", bus->model);
+       return sysfs_emit(buf, "%c\n", bus->model);
 }
 static DEVICE_ATTR_RO(model);
 
@@ -125,7 +125,7 @@ static ssize_t minor_show(struct device *dev, struct device_attribute *attr,
 {
        struct mcb_bus *bus = to_mcb_bus(dev);
 
-       return scnprintf(buf, PAGE_SIZE, "%d\n", bus->minor);
+       return sysfs_emit(buf, "%d\n", bus->minor);
 }
 static DEVICE_ATTR_RO(minor);
 
@@ -134,7 +134,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 {
        struct mcb_bus *bus = to_mcb_bus(dev);
 
-       return scnprintf(buf, PAGE_SIZE, "%s\n", bus->name);
+       return sysfs_emit(buf, "%s\n", bus->name);
 }
 static DEVICE_ATTR_RO(name);