stable inclusion
from linux-4.19.99
commit 8ce259e5b003c0838c12752584254e310ddf3191

--------------------------------

[ Upstream commit 41a6bf65 ]

Currently if lport is null then the null lport pointer is dereference when
printing out debug via the FC_LPORT_DB macro. Fix this by using the more
generic FC_LIBFC_DBG debug macro instead that does not use lport.

Addresses-Coverity: ("Dereference after null check")
Fixes: 7414705e ("libfc: Add runtime debugging with debug_logging module parameter")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>