diff options
| author | Robert Foss <robert.foss@collabora.com> | 2016-08-29 15:32:16 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-01 06:07:05 +0200 |
| commit | 8a46f665833a2085e402bd0827be380f161f09ef (patch) | |
| tree | d15ae39e7a98704fad123b6be04674114fc41592 /drivers/net/usb/asix_devices.c | |
| parent | net: asix: Add in_pm parameter (diff) | |
| download | linux-8a46f665833a2085e402bd0827be380f161f09ef.tar.xz linux-8a46f665833a2085e402bd0827be380f161f09ef.zip | |
net: asix: Avoid looping when the device is disconnected
From: Vincent Palatin <vpalatin@chromium.org>
Check the answers from the USB stack and avoid re-sending multiple times
the request if the device has disappeared.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/asix_devices.c')
| -rw-r--r-- | drivers/net/usb/asix_devices.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index aaa42909d932..ebeb73014fdf 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -79,6 +79,8 @@ static u32 asix_get_phyid(struct usbnet *dev) /* Poll for the rare case the FW or phy isn't ready yet. */ for (i = 0; i < 100; i++) { phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1); + if (phy_reg < 0) + return 0; if (phy_reg != 0 && phy_reg != 0xFFFF) break; mdelay(1); |