[media] drivers/media/pci/ngene/ngene-core.c: fix error return code

Author: Peter Senna Tschudin <peter.senna@gmail.com>

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/)
// 
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// 

Signed-off-by: Peter Senna Tschudin 
Signed-off-by: Mauro Carvalho Chehab 
---
 drivers/media/pci/ngene/ngene-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
 
diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 2c2df88..8eeec4f 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1691,7 +1691,8 @@ int __devinit ngene_probe(struct pci_dev *pci_dev,
 	dev->i2c_current_bus = -1;
 
 	/* Register DVB adapters and devices for both channels */
-	if (init_channels(dev) < 0)
+	stat = init_channels(dev);
+	if (stat < 0)
 		goto fail2;
 
 	return 0;