From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 21:57:28 +0000 (-0700)
Subject: 3.4-stable patches
X-Git-Tag: v3.10.17~17
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6cb375de230beb5eab1da08db6f6a40abc682e3b;p=thirdparty%2Fkernel%2Fstable-queue.git

3.4-stable patches

added patches:
	watchdog-ts72xx_wdt-locking-bug-in-ioctl.patch
---

diff --git a/queue-3.4/series b/queue-3.4/series
index 9bd025d6fc9..15db212a378 100644
--- a/queue-3.4/series
+++ b/queue-3.4/series
@@ -5,3 +5,4 @@ vfs-allow-o_path-file-descriptors-for-fstatfs.patch
 ext4-fix-memory-leak-in-xattr.patch
 kvm-ppc-book3s-hv-fix-typo-in-saving-dscr.patch
 parisc-fix-interruption-handler-to-respect-pagefault_disable.patch
+watchdog-ts72xx_wdt-locking-bug-in-ioctl.patch
diff --git a/queue-3.4/watchdog-ts72xx_wdt-locking-bug-in-ioctl.patch b/queue-3.4/watchdog-ts72xx_wdt-locking-bug-in-ioctl.patch
new file mode 100644
index 00000000000..f35fba15eb9
--- /dev/null
+++ b/queue-3.4/watchdog-ts72xx_wdt-locking-bug-in-ioctl.patch
@@ -0,0 +1,34 @@
+From 8612ed0d97abcf1c016d34755b7cf2060de71963 Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Fri, 23 Aug 2013 11:40:59 +0300
+Subject: watchdog: ts72xx_wdt: locking bug in ioctl
+
+From: Dan Carpenter <dan.carpenter@oracle.com>
+
+commit 8612ed0d97abcf1c016d34755b7cf2060de71963 upstream.
+
+Calling the WDIOC_GETSTATUS & WDIOC_GETBOOTSTATUS and twice will cause a
+interruptible deadlock.
+
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Reviewed-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
+Cc: Jonghwan Choi <jhbird.choi@samsung.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/watchdog/ts72xx_wdt.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/watchdog/ts72xx_wdt.c
++++ b/drivers/watchdog/ts72xx_wdt.c
+@@ -310,7 +310,8 @@ static long ts72xx_wdt_ioctl(struct file
+ 
+ 	case WDIOC_GETSTATUS:
+ 	case WDIOC_GETBOOTSTATUS:
+-		return put_user(0, p);
++		error = put_user(0, p);
++		break;
+ 
+ 	case WDIOC_KEEPALIVE:
+ 		ts72xx_wdt_kick(wdt);