From 86e506e39909d356ca1c76c00022f3c64f5b7665 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Fri, 5 Oct 2012 12:10:51 +0000
Subject: drivers/net/ethernet/amd/amd8111e.c: fix error return code
The function amd8111e_probe_one() return 0 for success and negative
value for most of its internal tests failures. There are two exceptions
that are error cases going to err_free_reg:. For this two cases, the
function abort its success execution path, but returns non negative
value, making it dificult for a caller function to notice the error.
This patch fixes the error cases that do not return negative values.
This was found by Coccinelle, but the code change was made by hand.
This patch is not robot generated.
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/amd/amd8111e.c | 2 ++
1 file changed, 2 insertions(+)
(limited to 'drivers/net/ethernet')
diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index 64d0d9c1afa2..3491d4312fc9 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1845,6 +1845,7 @@ static int __devinit amd8111e_probe_one(struct pci_dev *pdev,
if((pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM))==0){
printk(KERN_ERR "amd8111e: No Power Management capability, "
"exiting.\n");
+ err = -ENODEV;
goto err_free_reg;
}
@@ -1852,6 +1853,7 @@ static int __devinit amd8111e_probe_one(struct pci_dev *pdev,
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) < 0) {
printk(KERN_ERR "amd8111e: DMA not supported,"
"exiting.\n");
+ err = -ENODEV;
goto err_free_reg;
}
--
cgit