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authorColin Ian King <colin.king@canonical.com>2019-07-02 12:18:35 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2019-07-17 05:32:24 +0300
commit41a6bf6529edd10a6def42e3b2c34a7474bcc2f5 (patch)
tree1e535421115577c1c24409a712a23a31124eed2f /drivers/scsi/libfc/fc_exch.c
parent484647088826f2f651acbda6bcf9536b8a466703 (diff)
downloadlinux-41a6bf6529edd10a6def42e3b2c34a7474bcc2f5.tar.xz
scsi: libfc: fix null pointer dereference on a null lport
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: 7414705ea4ae ("libfc: Add runtime debugging with debug_logging module parameter") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libfc/fc_exch.c')
-rw-r--r--drivers/scsi/libfc/fc_exch.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 025cd2ff9f65..0c87b9777c3a 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -2591,7 +2591,7 @@ void fc_exch_recv(struct fc_lport *lport, struct fc_frame *fp)
/* lport lock ? */
if (!lport || lport->state == LPORT_ST_DISABLED) {
- FC_LPORT_DBG(lport, "Receiving frames for an lport that "
+ FC_LIBFC_DBG("Receiving frames for an lport that "
"has not been initialized correctly\n");
fc_frame_free(fp);
return;