md/md-linear: Fix a NULL vs IS_ERR() bug in linear_add()
authorDan Carpenter <dan.carpenter@linaro.org>
Wed, 15 Jan 2025 06:53:52 +0000 (09:53 +0300)
committerSong Liu <song@kernel.org>
Thu, 16 Jan 2025 17:31:25 +0000 (09:31 -0800)
commit62c552070a980363d55a6082b432ebd1cade7a6e
tree8f83b6815beea7440fc1bc58b5f5376cd2d63d4c
parent3d9a9e9a77c5ebecda43b514f2b9659644b904d0
md/md-linear: Fix a NULL vs IS_ERR() bug in linear_add()

The linear_conf() returns error pointers, it doesn't return NULL.  Update
the error checking to match.

Fixes: 127186cfb184 ("md: reintroduce md-linear")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/add654be-759f-4b2d-93ba-a3726dae380c@stanley.mountain
Signed-off-by: Song Liu <song@kernel.org>
drivers/md/md-linear.c