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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-10-05 16:10:53 +0400
committerDavid S. Miller <davem@davemloft.net>2012-10-07 22:37:12 +0400
commit97db4b9d02a8fc2f06514f10f6b426b97f6f7a0d (patch)
tree826ecaff6eef628950e4f9d45da59af49babd5cb /drivers/net/ethernet/natsemi/xtsonic.c
parent691299201b1416e823bbada0df316c6408167aa7 (diff)
downloadlinux-97db4b9d02a8fc2f06514f10f6b426b97f6f7a0d.tar.xz
drivers/net/ethernet/natsemi/xtsonic.c: fix error return code
The function sonic_probe1() return 0 for success and negative value for most of its internal tests failures. There is one exception that is error case going to out:. 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/) // <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/natsemi/xtsonic.c')
-rw-r--r--drivers/net/ethernet/natsemi/xtsonic.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c
index e01c0a07a93a..7dfe88398d7d 100644
--- a/drivers/net/ethernet/natsemi/xtsonic.c
+++ b/drivers/net/ethernet/natsemi/xtsonic.c
@@ -205,6 +205,7 @@ static int __init sonic_probe1(struct net_device *dev)
if (lp->descriptors == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for "
" descriptors.\n", dev_name(lp->device));
+ err = -ENOMEM;
goto out;
}