From: Himadri Pandya <[email protected]> commit a092b7233f0e000cc6f2c71a49e2ecc6f917a5fc upstream.
The buffer size is 2 Bytes and we expect to receive the same amount of data. But sometimes we receive less data and run into uninit-was-stored issue upon read. Hence modify the error check on the return value to match with the buffer size as a prevention. Reported-and-tested by: [email protected] Signed-off-by: Himadri Pandya <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/usb/asix_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -277,7 +277,7 @@ int asix_read_phy_addr(struct usbnet *de netdev_dbg(dev->net, "asix_get_phy_addr()\n"); - if (ret < 0) { + if (ret < 2) { netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); goto out; }
