From: Yuesong Li <liyuesong@vivo.com>
Date: Fri, 30 Aug 2024 03:16:42 +0000 (+0800)
Subject: dm: Convert to use ERR_CAST()
X-Git-Tag: v6.12-rc1~30^2~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=00565cff01262c888512bffe9d41e4831a6f2cc7;p=thirdparty%2Fkernel%2Flinux.git

dm: Convert to use ERR_CAST()

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>
---

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index a0c1620e90c8c..89632ce977605 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -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);