| Message ID | 20211220061755.770193-1-jiasheng@iscas.ac.cn |
|---|---|
| State | New |
| Headers | show |
| Series | watchdog: ie6xx_wdt: Check for null res pointer | expand |
diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c index 8f28993fab8b..ee5b68d2e271 100644 --- a/drivers/watchdog/ie6xx_wdt.c +++ b/drivers/watchdog/ie6xx_wdt.c @@ -271,6 +271,9 @@ static int ie6xx_wdt_remove(struct platform_device *pdev) struct resource *res; res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) + return -EINVAL; + ie6xx_wdt_stop(NULL); watchdog_unregister_device(&ie6xx_wdt_dev); ie6xx_wdt_debugfs_exit();
The return value of platform_get_resource() needs to be checked. To avoid use of error pointer in case of the failure of alloc. Fixes: 101ce87b3bdd ("watchdog: Add watchdog driver for Intel Atom E6XX") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- drivers/watchdog/ie6xx_wdt.c | 3 +++ 1 file changed, 3 insertions(+)