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dm: Convert to use ERR_CAST()

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Use ERR_CAST() as it is designed for casting an error pointer to
another type.

This macro utilizes the __force and __must_check modifiers, which instruct
the compiler to verify for errors at the locations where it is employed.

Signed-off-by: Yuesong Li <liyuesong@vivo.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Yuesong Li 2024-08-30 11:16:42 +08:00 committed by Mikulas Patocka
parent 02c0207ecd
commit 00565cff01
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-thin.c
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@ -2948,7 +2948,7 @@ static struct pool *pool_create(struct mapped_device *pool_md,
pmd = dm_pool_metadata_open(metadata_dev, block_size, format_device);
if (IS_ERR(pmd)) {
*error = "Error creating metadata object";
return (struct pool *)pmd;
return ERR_CAST(pmd);
}
pool = kzalloc(sizeof(*pool), GFP_KERNEL);