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Commit 935d0fce authored by Joe Eykholt's avatar Joe Eykholt Committed by James Bottomley
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[SCSI] libfc: don't do discovery before callback is set 



It's possible to "restart" discovery before it was started if
an RSCN is received early enough.  We were jumping to 0
due to the disc_callback function pointer not getting set.

Don't restart discovery if disc_callback is NULL.

Signed-off-by: default avatarJoe Eykholt <jeykholt@cisco.com>
Signed-off-by: default avatarRobert Love <robert.w.love@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 29d898e9

drivers/scsi/libfc/fc_disc.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -219,6 +219,9 @@ static void fc_disc_recv_req(struct fc_seq *sp, struct fc_frame *fp, 
 */

 */

static void fc_disc_restart(struct fc_disc *disc)

static void fc_disc_restart(struct fc_disc *disc)

{

{

	if (!disc->disc_callback)

		return;



	FC_DISC_DBG(disc, "Restarting discovery\n");

	FC_DISC_DBG(disc, "Restarting discovery\n");





	disc->requested = 1;

	disc->requested = 1;