Commit b2d4b150(smsc95xx: enable dynamic autosuspend) implements
autosuspend, but breaks current runtime suspend, such as:
when the interface becomes down, the usb device can't be put into
runtime suspend any more.
This patch fixes the broken runtime suspend.
Cc: Steve Glendinning <steve.glendinning@xxxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/net/usb/smsc95xx.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index b2721bc..7fa9622 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1418,15 +1418,6 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
u32 val, link_up;
int ret;
- /* TODO: don't indicate this feature to usb framework if
- * our current hardware doesn't have the capability
- */
- if ((message.event == PM_EVENT_AUTO_SUSPEND) &&
- (!(pdata->features & FEATURE_AUTOSUSPEND))) {
- netdev_warn(dev->net, "autosuspend not supported\n");
- return -EBUSY;
- }
-
ret = usbnet_suspend(intf, message);
if (ret < 0) {
netdev_warn(dev->net, "usbnet_suspend error\n");
@@ -1441,7 +1432,8 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
/* determine if link is up using only _nopm functions */
link_up = smsc95xx_link_ok_nopm(dev);
- if (message.event == PM_EVENT_AUTO_SUSPEND) {
+ if (message.event == PM_EVENT_AUTO_SUSPEND &&
+ (pdata->features & FEATURE_AUTOSUSPEND)) {
ret = smsc95xx_autosuspend(dev, link_up);
goto done;
}
--
1.7.9.5
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