From: Julia Lawall <julia.law...@lip6.fr>

Convert a 0 error return code to a negative one, as returned elsewhere in the
function.

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

// <smpl>
@@
identifier ret;
expression e,e1,e2,e3,e4,x;
@@

(
if (\(ret != 0\|ret < 0\) || ...) { ... return ...; }
|
ret = 0
)
... when != ret = e1
*x = 
\(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...);
... when != x = e2
    when != ret = e3
*if (x == NULL || ...)
{
  ... when != ret = e4
*  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <julia.law...@lip6.fr>

---
 drivers/infiniband/hw/qib/qib_iba7322.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c 
b/drivers/infiniband/hw/qib/qib_iba7322.c
index 0d7280a..3f6b21e 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -6346,8 +6346,10 @@ static int qib_init_7322_variables(struct qib_devdata 
*dd)
                        dd->piobcnt4k * dd->align4k;
                dd->piovl15base = ioremap_nocache(vl15off,
                                                  NUM_VL15_BUFS * dd->align4k);
-               if (!dd->piovl15base)
+               if (!dd->piovl15base) {
+                       ret = -ENOMEM;
                        goto bail;
+               }
        }
        qib_7322_set_baseaddrs(dd); /* set chip access pointers now */
 

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