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authorEddie Wai <eddie.wai@broadcom.com>2010-11-24 02:29:21 +0300
committerJames Bottomley <James.Bottomley@suse.de>2010-12-21 21:24:10 +0300
commit8eea2f55a65b9471276e78e5c86ddd19c4c0365c (patch)
tree5b40a3401d20d6d40ce22e86307e3252a3e7b67d /drivers/scsi/bnx2i
parent5ee32576269f33b66c6dbc98144aead1e74a1e91 (diff)
downloadlinux-8eea2f55a65b9471276e78e5c86ddd19c4c0365c.tar.xz
[SCSI] bnx2i: Added fix for NOP-Out response panic from unsolicited NOP-In
The patch fixes the following situations where NOP-Out pkt is called for: - local unsolicited NOP-Out requests (requesting no NOP-In response) - local NOP-Out responses to unsolicited NOP-In requests kernel panic is observed due to double session spin_lock requests; one in the bnx2i_process_nopin_local_cmpl routine in bnx2i_hwi.c and the other in the iscsi_put_task routine in libiscsi.c The proposed fix is to export the currently static __iscsi_put_task() routine and have bnx2i call it directly instead of the iscsi_put_task() routine which holds the session spin lock. Signed-off-by: Eddie Wai <eddie.wai@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Anil Veerabhadrappa <anilgv@broadcom.com> Acked-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/bnx2i')
-rw-r--r--drivers/scsi/bnx2i/bnx2i_hwi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 16c76e0b2318..32cf9306ffcb 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -1513,7 +1513,7 @@ static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session,
task = iscsi_itt_to_task(conn,
nop_in->itt & ISCSI_NOP_IN_MSG_INDEX);
if (task)
- iscsi_put_task(task);
+ __iscsi_put_task(task);
spin_unlock(&session->lock);
}