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| author | Joe Eykholt <jeykholt@cisco.com> | 2009-08-25 23:02:54 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-09-10 19:07:56 +0200 |
| commit | 935d0fce44b906268b8a29de4e72ebb57a3a06d8 (patch) | |
| tree | 359f91d64556d06964b418b77b2a25f4f89c50d1 /drivers/scsi/libfc/fc_disc.c | |
| parent | [SCSI] libfc: clean up point-to-point discovery code. (diff) | |
| download | linux-935d0fce44b906268b8a29de4e72ebb57a3a06d8.tar.xz linux-935d0fce44b906268b8a29de4e72ebb57a3a06d8.zip | |
[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: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/libfc/fc_disc.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_disc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index 428421842f3a..1a699f484c85 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -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) { + if (!disc->disc_callback) + return; + FC_DISC_DBG(disc, "Restarting discovery\n"); disc->requested = 1; |