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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>
Tue, 22 Oct 2013 07:41:44 +0000 (08:41 +0100)
commit826380d59f09185201d4327121f4919d2914a2cc
tree4d7fb6c5f662e779b6408252b5e2292a67388a18tree
parentac008905d50badfe8b695fa3f1eef20ac352e3e6commit | 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 | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git