diff options
| author | Peng Fan <peng.fan@nxp.com> | 2020-05-03 22:41:13 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2020-05-10 13:24:41 +0200 |
| commit | d2b70205dd67f32427dde4f1a7a8966f4924dfad (patch) | |
| tree | 19a54a47c9efe3dd2d21ffde0babc404de3c9f12 /net/eth-uclass.c | |
| parent | a6979f78bcba76611e5e3fd6226b5b79c8021c2e (diff) | |
net: eth-uclass: add return value check
Add return value check
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'net/eth-uclass.c')
| -rw-r--r-- | net/eth-uclass.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/eth-uclass.c b/net/eth-uclass.c index 8bf2eabe90..950a48d520 100644 --- a/net/eth-uclass.c +++ b/net/eth-uclass.c @@ -40,8 +40,12 @@ static int eth_errno; static struct eth_uclass_priv *eth_get_uclass_priv(void) { struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_ETH, &uc); + if (ret) + return NULL; - uclass_get(UCLASS_ETH, &uc); assert(uc); return uc->priv; } @@ -102,6 +106,7 @@ struct udevice *eth_get_dev_by_name(const char *devname) struct udevice *it; struct uclass *uc; int len = strlen("eth"); + int ret; /* Must be longer than 3 to be an alias */ if (!strncmp(devname, "eth", len) && strlen(devname) > len) { @@ -109,7 +114,10 @@ struct udevice *eth_get_dev_by_name(const char *devname) seq = simple_strtoul(startp, &endp, 10); } - uclass_get(UCLASS_ETH, &uc); + ret = uclass_get(UCLASS_ETH, &uc); + if (ret) + return NULL; + uclass_foreach_dev(it, uc) { /* * We need the seq to be valid, so try to probe it. |