random-mirrors/smaeul-u-boot
1
0
Fork 0
mirror of https://github.com/smaeul/u-boot.git synced 2025-10-14 04:46:01 +01:00
Code Issues Packages Projects Releases Wiki Activity

net: dm9000: Correctly handle empty FIFO

Browse Source 
Assign packet pointer only in case the MAC reports anything in the FIFO.
In case the MAC indicates empty FIFO, return 0 to pass that information
to the network stack.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
This commit is contained in:
Marek Vasut 2022-04-25 20:28:05 +02:00 committed by Tom Rini
parent 01207947d5
commit ecd8b03713
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/dm9000x.c
View File

@ -666,10 +666,10 @@ static int dm9000_recv(struct udevice *dev, int flags, uchar **packetp)
int ret; int ret;
ret = dm9000_recv_common(db, data); ret = dm9000_recv_common(db, data);
if (ret) if (ret > 0)
*packetp = (void *)data; *packetp = (void *)data;
return ret ? ret : -EAGAIN; return ret >= 0 ? ret : -EAGAIN;
} }
static int dm9000_write_hwaddr(struct udevice *dev) static int dm9000_write_hwaddr(struct udevice *dev)