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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>
Fri, 18 Oct 2013 14:45:45 +0000 (07:45 -0700)
commite2dcd671f79ade2c764034aeab492ce9a7da6194
tree18176491e8ed9a35d0028db9a458ae9a5d6007e5tree | snapshot
parent4b3ea63f5af44f93bd28d94a93508bbd3186be89commit | 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
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