When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> --- drivers/watchdog/bcm_kona_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c index eb850a8..8237c4e 100644 --- a/drivers/watchdog/bcm_kona_wdt.c +++ b/drivers/watchdog/bcm_kona_wdt.c @@ -279,7 +279,7 @@ static int bcm_kona_wdt_probe(struct platform_device *pdev) wdt->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(wdt->base)) - return -ENODEV; + return PTR_ERR(wdt->base); wdt->resolution = SECWDOG_DEFAULT_RESOLUTION; ret = bcm_kona_wdt_set_resolution_reg(wdt); -- 2.1.0