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| author | Johannes Stezenbach <js@sig21.net> | 2010-12-13 12:32:49 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-12-13 15:23:34 -0500 |
| commit | d7bb5f845f437662296adbfeaab8fbfce1c32289 (patch) | |
| tree | d35d29fe6f9ea5806c8d0b962b0886142f416f6b /drivers/net/wireless/rt2x00/rt61pci.c | |
| parent | 8d4ff3f3045e57f57634559c063bf70993a1d00a (diff) | |
| download | kernel_samsung_smdk4412-d7bb5f845f437662296adbfeaab8fbfce1c32289.tar.gz kernel_samsung_smdk4412-d7bb5f845f437662296adbfeaab8fbfce1c32289.tar.bz2 kernel_samsung_smdk4412-d7bb5f845f437662296adbfeaab8fbfce1c32289.zip | |
rt2x00: fix hang when unplugging USB device in use
When an rt2x00 USB device is unplugged while in use, it reliably
hangs the whole system. After some time the watchdog prints:
BUG: soft lockup - CPU#0 stuck for 64s! [kworker/u:0:5]
...
[<c01a88d8>] (usb_submit_urb+0x0/0x2ac) from [<bf0e752c>] (rt2x00usb_kick_rx_entry+0xb4/0xe8 [rt2x00usb])
[<bf0e7478>] (rt2x00usb_kick_rx_entry+0x0/0xe8 [rt2x00usb]) from [<bf0e7588>] (rt2x00usb_clear_entry+x28/0x2c [rt2x00usb])
[<bf0e7560>] (rt2x00usb_clear_entry+0x0/0x2c [rt2x00usb]) from [<bf0d5bc4>] (rt2x00lib_rxdone+0x2e0/0x2f8 [rt2x00lib])
[<bf0d58e4>] (rt2x00lib_rxdone+0x0/0x2f8 [rt2x00lib]) from [<bf0e7e00>] (rt2x00usb_work_rxdone+0x54/0x74 [rt2x00usb])
[<bf0e7dac>] (rt2x00usb_work_rxdone+0x0/0x74 [rt2x00usb]) from [<c00542b4>] (process_one_work+0x20c/0x35c)
Clear the DEVICE_STATE_PRESENT flag when usb_submit_urb()
returns -ENODEV to fix this.
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt61pci.c')
0 files changed, 0 insertions, 0 deletions