linux-kernel - [PATCH] dm: fix err

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Date:   Mon, 26 Oct 2020 05:02:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Satya Tangirala <satyat@...gle.com>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, dm-devel@...hat.com
Cc:     kbuild-all@...ts.01.org, Jens Axboe <axboe@...nel.dk>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>,
        Eric Biggers <ebiggers@...gle.com>,
        Satya Tangirala <satyat@...gle.com>
Subject: [PATCH] dm: fix err_cast.cocci warnings

From: kernel test robot <lkp@...el.com>

drivers/md/dm.c:2204:12-19: WARNING: ERR_CAST can be used with ksm


 Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

Generated by: scripts/coccinelle/api/err_cast.cocci

CC: Satya Tangirala <satyat@...gle.com>
Signed-off-by: kernel test robot <lkp@...el.com>
---

url:    https://github.com/0day-ci/linux/commits/Satya-Tangirala/add-support-for-inline-encryption-to-device-mapper/20201016-054900
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next

 dm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2201,7 +2201,7 @@ static struct dm_table *__bind(struct ma
 
 	ksm = dm_init_inline_encryption(md, t);
 	if (IS_ERR(ksm)) {
-		old_map = ERR_PTR(PTR_ERR(ksm));
+		old_map = ERR_CAST(ksm);
 		goto out;
 	}