The devm_ioremap_resource() function doesn't return NULL, it returns error pointers. Fixes: 46f934c9a12f ("misc/pvpanic: add support to get pvpanic device info FDT") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- drivers/misc/pvpanic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/misc/pvpanic.c b/drivers/misc/pvpanic.c index 01241ec6a5cd..595ac065b401 100644 --- a/drivers/misc/pvpanic.c +++ b/drivers/misc/pvpanic.c @@ -140,8 +140,8 @@ static int pvpanic_mmio_probe(struct platform_device *pdev) return -EINVAL; base = devm_ioremap_resource(&pdev->dev, mem); - if (base == NULL) - return -EFAULT; + if (IS_ERR(base)) + return PTR_ERR(base); atomic_notifier_chain_register(&panic_notifier_list, &pvpanic_panic_nb); -- 2.11.0