4.9-stable patches

added patches:
	usb-gadget-configfs-fix-missing-spin_lock_init.patch

diff --git a/queue-4.9/series b/queue-4.9/series
index 8d4865f64348fd59a0e358bb8fd0d3f6e5dd883a..8a94f7811c07ae9654bd4d7a63cb6e216bd46908 100644 (file)
--- a/queue-4.9/series
+++ b/queue-4.9/series
@@ -93,4 +93,5 @@ thermal-fix-deadlock-in-thermal-thermal_zone_device_check.patch
 kvm-x86-fix-out-of-bounds-write-in-kvm_get_emulated_cpuid-cve-2019-19332.patch
 appletalk-fix-potential-null-pointer-dereference-in-unregister_snap_client.patch
 appletalk-set-error-code-if-register_snap_client-failed.patch
+usb-gadget-configfs-fix-missing-spin_lock_init.patch
 alsa-hda-fix-pending-unsol-events-at-shutdown.patch

diff --git a/queue-4.9/usb-gadget-configfs-fix-missing-spin_lock_init.patch b/queue-4.9/usb-gadget-configfs-fix-missing-spin_lock_init.patch
new file mode 100644 (file)
index 0000000..9f7f0cf
--- /dev/null
+++ b/queue-4.9/usb-gadget-configfs-fix-missing-spin_lock_init.patch
@@ -0,0 +1,35 @@
+From 093edc2baad2c258b1f55d1ab9c63c2b5ae67e42 Mon Sep 17 00:00:00 2001
+From: Wei Yongjun <weiyongjun1@huawei.com>
+Date: Wed, 30 Oct 2019 03:40:46 +0000
+Subject: usb: gadget: configfs: Fix missing spin_lock_init()
+
+From: Wei Yongjun <weiyongjun1@huawei.com>
+
+commit 093edc2baad2c258b1f55d1ab9c63c2b5ae67e42 upstream.
+
+The driver allocates the spinlock but not initialize it.
+Use spin_lock_init() on it to initialize it correctly.
+
+This is detected by Coccinelle semantic patch.
+
+Fixes: 1a1c851bbd70 ("usb: gadget: configfs: fix concurrent issue between composite APIs")
+Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
+Cc: stable <stable@vger.kernel.org>
+Reviewed-by: Peter Chen <peter.chen@nxp.com>
+Link: https://lore.kernel.org/r/20191030034046.188808-1-weiyongjun1@huawei.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/usb/gadget/configfs.c |    1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/usb/gadget/configfs.c
++++ b/drivers/usb/gadget/configfs.c
+@@ -1541,6 +1541,7 @@ static struct config_group *gadgets_make
+       gi->composite.resume = NULL;
+       gi->composite.max_speed = USB_SPEED_SUPER;
+ 
++      spin_lock_init(&gi->spinlock);
+       mutex_init(&gi->lock);
+       INIT_LIST_HEAD(&gi->string_list);
+       INIT_LIST_HEAD(&gi->available_func);