[SCSI] libfc: don't do discovery before callback is set
authorJoe Eykholt <jeykholt@cisco.com>
Tue, 25 Aug 2009 21:02:54 +0000 (14:02 -0700)
committerJames Bottomley <James.Bottomley@suse.de>
Thu, 10 Sep 2009 17:07:56 +0000 (12:07 -0500)
commit935d0fce44b906268b8a29de4e72ebb57a3a06d8
tree359f91d64556d06964b418b77b2a25f4f89c50d1
parent29d898e909e3d086055e2649f5a24d4c2c1ca884
[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>
drivers/scsi/libfc/fc_disc.c