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block: sed-opal: avoid possible wrong address reference in read_sed_opal_key() 

Clang static checker (scan-build) warning:
block/sed-opal.c:line 317, column 3
Value stored to 'ret' is never read.

Fix this problem by returning the error code when keyring_search() failed.
Otherwise, 'key' will have a wrong value when 'kerf' stores the error code.

Fixes: 3bfeb61256 ("block: sed-opal: keyring support for SED keys")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20240611073659.429582-1-suhui@nfschina.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Su Hui 2024-06-11 15:37:00 +08:00 committed by Jens Axboe
parent 27d024235b
commit 9b1ebce6a1
1 changed files with 1 additions and 1 deletions
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2
block/sed-opal.c
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@ -314,7 +314,7 @@ static int read_sed_opal_key(const char *key_name, u_char *buffer, int buflen)
&key_type_user, key_name, true);
if (IS_ERR(kref))
ret = PTR_ERR(kref);
return PTR_ERR(kref);
key = key_ref_to_ptr(kref);
down_read(&key->sem);