rt2x00: usb: fix reset resume
Patch fixes warnings like below happened on resume: WARNING: at net/mac80211/driver-ops.h:12 check_sdata_in_driver+0x32/0x34() Problem is that in __ieee80211_susped() we remove sdata (i.e wlan0 interface) and then during resume we call usb_unbind_interface() -> ieee80211_unregister_hw() with sdata removed. Patch fixes problem by adding .reset_resume calback, hence we do not unbind usb device on resume. This callback can be the same as normal .resume callback, sice we do all needed initalization during interface start, which is performed on resume [ ieee80211_resume() -> ieee80211_reconfig() -> rt2x00mac_start() -> rt2x00lib_start ]. Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=48041 Reported-by: David Herrmann <dh.herrmann@googlemail.com> Reported-and-tested-by: Stephen Boyd <bebarino@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -1988,6 +1988,7 @@ static struct usb_driver rt2500usb_driver = {
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.disconnect = rt2x00usb_disconnect,
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.suspend = rt2x00usb_suspend,
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.resume = rt2x00usb_resume,
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.reset_resume = rt2x00usb_resume,
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.disable_hub_initiated_lpm = 1,
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};
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@ -1282,6 +1282,7 @@ static struct usb_driver rt2800usb_driver = {
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.disconnect = rt2x00usb_disconnect,
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.suspend = rt2x00usb_suspend,
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.resume = rt2x00usb_resume,
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.reset_resume = rt2x00usb_resume,
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.disable_hub_initiated_lpm = 1,
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};
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@ -2535,6 +2535,7 @@ static struct usb_driver rt73usb_driver = {
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.disconnect = rt2x00usb_disconnect,
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.suspend = rt2x00usb_suspend,
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.resume = rt2x00usb_resume,
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.reset_resume = rt2x00usb_resume,
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.disable_hub_initiated_lpm = 1,
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};
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