[PATCH 1/5] mptfusion: fix error return code

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From: Julia Lawall <Julia.Lawall@xxxxxxx>

Return a negative error code on failure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
 drivers/message/fusion/mptfc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index d8bf84a..629df6d 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -1325,8 +1325,10 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		 "mptfc_wq_%d", sh->host_no);
 	ioc->fc_rescan_work_q =
 		create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
-	if (!ioc->fc_rescan_work_q)
+	if (!ioc->fc_rescan_work_q) {
+		error = -ENOMEM;
 		goto out_mptfc_probe;
+	}
 
 	/*
 	 *  Pre-fetch FC port WWN and stuff...

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