[U-Boot] [RFC PATCH] net: Check network device driver name

[Michal Simek]

If name is longer than allocated space NAMESIZE
mac address is rewritten which show error
message like:

Error message:
Warning: Xlltemac.87000000 MAC addresses don't match:
Address in SROM is         30:00:00:00:00:00
Address in environment is  00:0a:35:00:6a:04

Signed-off-by: Michal Simek <monstr at monstr.eu>
---
 net/eth.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/net/eth.c b/net/eth.c
index 3aad71f..54231b1 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -191,6 +191,13 @@ static void eth_current_changed(void)
 int eth_register(struct eth_device *dev)
 {
 	struct eth_device *d;
+
+	if (strlen(dev->name) > NAMESIZE) {
+		printf("Long(%d>%d) network driver name for %s\n",
+					strlen(dev->name), NAMESIZE, dev->name);
+		return 0;
+	}
+
 	if (!eth_devices) {
 		eth_current = eth_devices = dev;
 		eth_current_changed();
-- 
1.5.5.6