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| author |   Yang Yingliang <yangyingliang@huawei.com> | 2021-09-09 17:06:08 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-09-09 14:24:02 -0600 |
| commit | 221e8360834c59f0c9952630fa5904a94ebd2bb8 (patch) | |
| tree | 87eba00454997fe9e21557a1b89857c94c9dd51c /drivers/block/n64cart.c | |
| parent | blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues (diff) | |
| download | linux-dev-221e8360834c59f0c9952630fa5904a94ebd2bb8.tar.xz linux-dev-221e8360834c59f0c9952630fa5904a94ebd2bb8.zip | |
n64cart: fix return value check in n64cart_probe()
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@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20210909090608.2989716-1-yangyingliang@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/n64cart.c')
| -rw-r--r-- | drivers/block/n64cart.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/n64cart.c b/drivers/block/n64cart.c index c84be0028f63..26798da661bd 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 PTR_ERR(reg_base); disk = blk_alloc_disk(NUMA_NO_NODE); if (!disk) |