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authorHugh Daschbach <hdasch@broadcom.com>2010-01-21 10:15:55 -0800
committerJames Bottomley <James.Bottomley@suse.de>2010-02-17 09:57:01 -0600
commitb248df30fca3aeee1d650b570e8cbc4e8cc45710 (patch)
treefefe362a9c9513aa3a0e59a643827952d5ad383e /drivers/scsi
parent3b709150b73205710d05128b925090aac048ed23 (diff)
[SCSI] libfc: Don't assume response request present.
Fix NULL pointer dereference crash occurs in fc_lport_bsg_request() for bsg requests that do not contain a response request. Specifically, FC_BSG_HST_ADD_RPORT and FC_BSG_HST_DEL_RPORT bsg requests are not guaranteed to include a response request. Signed-off-by: Hugh Daschbach <hdasch@broadcom.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')
-rw-r--r--drivers/scsi/libfc/fc_lport.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b165024a21..7ec8ce75007 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1800,7 +1800,8 @@ int fc_lport_bsg_request(struct fc_bsg_job *job)
u32 did;
job->reply->reply_payload_rcv_len = 0;
- rsp->resid_len = job->reply_payload.payload_len;
+ if (rsp)
+ rsp->resid_len = job->reply_payload.payload_len;
mutex_lock(&lport->lp_mutex);