[SCSI] bnx2fc: Do not arm CQ when there are no CQEs

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
git-mirror · Jul 28, 2011 · fd08bd6 · fd08bd6
1 parent bd4d5de
commit fd08bd6
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -1070,8 +1070,10 @@ int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
 				1 - tgt->cq_curr_toggle_bit;
 		}
 	}
-	bnx2fc_arm_cq(tgt);
-	atomic_add(num_free_sqes, &tgt->free_sqes);
+	if (num_free_sqes) {
+		bnx2fc_arm_cq(tgt);
+		atomic_add(num_free_sqes, &tgt->free_sqes);
+	}
 	spin_unlock_bh(&tgt->cq_lock);
 	return 0;
 }