From 8c65ef4b8a21ab7edc7f35bb9a3892b0051b0158 Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Fri, 5 Oct 2012 12:40:53 +0000 Subject: [PATCH] drivers/net/ethernet/sun/niu.c: fix error return code The function niu_pci_init_one() return 0 for success and negative value for most of its internal tests failures. There is one exception that is error case going to err_out_free_res:. For this error case, the function abort its success execution path, but returns non negative value, making it difficult for a caller function to notice the error. This patch fixes the error case that do not return negative value. 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/) // ( 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: David S. Miller --- drivers/net/ethernet/sun/niu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 8419bf385e08..275b430aeb75 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -9788,6 +9788,7 @@ static int __devinit niu_pci_init_one(struct pci_dev *pdev, if (!pci_is_pcie(pdev)) { dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n"); + err = -ENODEV; goto err_out_free_res; }