scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
authorVarun Prakash <varun@chelsio.com>
Wed, 18 Dec 2019 13:45:31 +0000 (19:15 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 23 Jan 2020 07:19:37 +0000 (08:19 +0100)
commit379b0a927d34d979064dd6e593024ebb7466d7fa
tree522b6728da3186644a480b254d88920de3a0c9eb
parent19f326178dce03ad7b3e308db5a59037d7c3c2ba
scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()

[ Upstream commit 71482fde704efdd8c3abe0faf34d922c61e8d76b ]

If cxgb4i_ddp_init() fails then cdev->cdev2ppm will be NULL, so add a check
for NULL pointer before dereferencing it.

Link: https://lore.kernel.org/r/1576676731-3068-1-git-send-email-varun@chelsio.com
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/scsi/cxgbi/libcxgbi.c