scsi: 3w-xxxx: Add error handling for initialization failure in tw_probe()
authorYuchen Yang <u202114568@hust.edu.cn>
Fri, 5 May 2023 14:12:55 +0000 (22:12 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Jul 2023 14:21:35 +0000 (16:21 +0200)
commit6c1b079e266bb70c699497548e3e4c8b57e5992e
tree1de7b3d9a649e442aa58146fad4fa59f500ade11
parent7aecdd47910c51707696e8b0e045b9f88bd4230f
scsi: 3w-xxxx: Add error handling for initialization failure in tw_probe()

[ Upstream commit 2e2fe5ac695a00ab03cab4db1f4d6be07168ed9d ]

Smatch complains that:

tw_probe() warn: missing error code 'retval'

This patch adds error checking to tw_probe() to handle initialization
failure. If tw_reset_sequence() function returns a non-zero value, the
function will return -EINVAL to indicate initialization failure.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yuchen Yang <u202114568@hust.edu.cn>
Link: https://lore.kernel.org/r/20230505141259.7730-1-u202114568@hust.edu.cn
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/scsi/3w-xxxx.c