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(parent: 8958138) | patch
watchdog: ts72xx_wdt: locking bug in ioctl
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 23 Aug 2013 08:40:59 +0000 (11:40 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 22 Oct 2013 08:02:25 +0000 (09:02 +0100)
commitd3c113cbc827fcd0d4b4cf7a4ad7a6954e16a9ed
tree67dd84d51b6dc412884f9739c6dd49be77448bf2tree | snapshot
parent8958138db8b16cca3c2fa1516fb9a800d1c0b6fbcommit | diff
watchdog: ts72xx_wdt: locking bug in ioctl

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 diff | blob | history
Domain: System / Kernel;