[PATCH 1/1] scsi: scsi_transport_fc: Fix a bug in the error handling function

From: K. Y. Srinivasan
Date: Thu Jan 07 2016 - 18:05:46 EST


The macro startget_to_rport() can return NULL; handle that case
properly.

Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_transport_fc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 24eaaf6..42a908f 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2081,7 +2081,7 @@ fc_timed_out(struct scsi_cmnd *scmd)
{
struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device));

- if (rport->port_state == FC_PORTSTATE_BLOCKED)
+ if ((rport == NULL) || (rport->port_state == FC_PORTSTATE_BLOCKED))
return BLK_EH_RESET_TIMER;

return BLK_EH_NOT_HANDLED;
--
1.7.4.1