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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2018-08-28 13:13:47 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2018-10-02 14:32:24 +0300 |
| commit | 953b9dd7725bad55a922a35e75bff7bebf7b9978 (patch) | |
| tree | 21362448aa15c3147f1cb97e5a07863632602e5b /drivers/watchdog/renesas_wdt.c | |
| parent | 3bed02a2966146b5876b366f4489e30af0547c66 (diff) | |
| download | linux-953b9dd7725bad55a922a35e75bff7bebf7b9978.tar.xz | |
watchdog: core: fix null pointer dereference when releasing cdev
watchdog_stop() calls watchdog_update_worker() which needs a valid
wdd->wd_data pointer. So, when unregistering the cdev, clear the
pointers after we call watchdog_stop(), not before.
Fixes: bb292ac1c602 ("watchdog: Introduce watchdog_stop_on_unregister helper")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/renesas_wdt.c')
0 files changed, 0 insertions, 0 deletions