Sep 17 2012

crypto: hifn_795x – 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: Herbert Xu 

---
 drivers/crypto/hifn_795x.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
 
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index c9c4bef..88bb001 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -2611,14 +2611,17 @@ static int __devinit hifn_probe(struct pci_dev *pdev, const struct pci_device_id
 		size = pci_resource_len(pdev, i);
 
 		dev->bar[i] = ioremap_nocache(addr, size);
-		if (!dev->bar[i])
+		if (!dev->bar[i]) {
+			err = -ENOMEM;
 			goto err_out_unmap_bars;
+		}
 	}
 
 	dev->desc_virt = pci_alloc_consistent(pdev, sizeof(struct hifn_dma),
 			&dev->desc_dma);
 	if (!dev->desc_virt) {
 		dprintk("Failed to allocate descriptor rings.\n");
+		err = -ENOMEM;
 		goto err_out_unmap_bars;
 	}
 	memset(dev->desc_virt, 0, sizeof(struct hifn_dma));

qlambert