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dm: eth: Correctly detect alias in eth_get_dev_by_name()

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When given a device name string, we should test to see if it is
really an alias like "eth#".

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Bin Meng 2015-08-27 22:25:54 -07:00 committed by Simon Glass
parent 71d7971fac
commit e408c42189
1 changed files with 3 additions and 2 deletions
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5
net/eth.c
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@ -195,10 +195,11 @@ struct udevice *eth_get_dev_by_name(const char *devname)
const char *startp = NULL;
struct udevice *it;
struct uclass *uc;
int len = strlen("eth");
/* Must be longer than 3 to be an alias */
if (strlen(devname) > strlen("eth")) {
startp = devname + strlen("eth");
if (!strncmp(devname, "eth", len) && strlen(devname) > len) {
startp = devname + len;
seq = simple_strtoul(startp, &endp, 10);
}