[media] omap3isp: Fix error return code in probe function

Convert a nonnegative 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>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
[laurent.pinchart@ideasonboard.com Replaced EBUSY with ENODEV]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/platform/omap3isp/isp.c

@@ -2102,8 +2102,10 @@ static int __devinit isp_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto error;
 
-	if (__omap3isp_get(isp, false) == NULL)
+	if (__omap3isp_get(isp, false) == NULL) {
+		ret = -ENODEV;
 		goto error;
+	}
 
 	ret = isp_reset(isp);
 	if (ret < 0)