drivers/usb/host/ohci-platform.c: fix error return code

Convert a possibly 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.Lawall@lip6.fr>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 10d85b9d9e9..e24ec9f7916 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -130,8 +130,10 @@ static int __devinit ohci_platform_probe(struct platform_device *dev)
         }
 
         hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-        if (!hcd->regs)
+        if (!hcd->regs) {
+                err = -ENOMEM;
                 goto err_release_region;
+        }
         err = usb_add_hcd(hcd, irq, IRQF_SHARED);
         if (err)
                 goto err_iounmap;