In case of error, the function devm_platform_ioremap_resource()
returns ERR_PTR() and never returns NULL. The NULL test in the
return value check should be replaced with IS_ERR().
Fixes: d9b2a2bbbb4d ("block: Add n64 cart driver")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
drivers/block/n64cart.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/block/n64cart.c b/drivers/block/n64cart.c
index 47bdf324e962..84a0f8d0be29 100644
--- a/drivers/block/n64cart.c
+++ b/drivers/block/n64cart.c
@@ -129,8 +129,8 @@ static int __init n64cart_probe(struct platform_device *pdev)
}
reg_base = devm_platform_ioremap_resource(pdev, 0);
- if (!reg_base)
- return -EINVAL;
+ if (IS_ERR(reg_base))
+ return ERR_PTR(reg_base);
disk = alloc_disk(0);
if (!disk)
