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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-10-05 12:40:56 +0000
committerDavid S. Miller <davem@davemloft.net>2012-10-07 14:37:12 -0400
commit0bd8ba18b9384e1c9104eee1d912fd5c8b4234c0 (patch)
tree647b62cc8f0029e128f213285fe2832372981d6d /drivers/net/ethernet/marvell
parentbbcf61fb30279c99e51b9d20b231e8513c5e6b1d (diff)
drivers/net/ethernet/marvell/sky2.c: fix error return code
The function sky2_probe() 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_out*:. 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>
Diffstat (limited to 'drivers/net/ethernet/marvell')
-rw-r--r--drivers/net/ethernet/marvell/sky2.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 2b0748dba8b..78946feab4a 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4924,6 +4924,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
if (~reg == 0) {
dev_err(&pdev->dev, "PCI configuration read error\n");
+ err = -EIO;
goto err_out;
}
@@ -4993,8 +4994,10 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
hw->st_size = hw->ports * roundup_pow_of_two(3*RX_MAX_PENDING + TX_MAX_PENDING);
hw->st_le = pci_alloc_consistent(pdev, hw->st_size * sizeof(struct sky2_status_le),
&hw->st_dma);
- if (!hw->st_le)
+ if (!hw->st_le) {
+ err = -ENOMEM;
goto err_out_reset;
+ }
dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n",
sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev);