diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-08-10 15:32:23 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-11 20:34:36 +0200 |
| commit | df71c9cfceea801e7e26e2c74241758ef9c042e5 (patch) | |
| tree | 72862348e9aa9f774dabdc9ff80e1aab0651d86a /drivers | |
| parent | rt2x00: fix crash in rt2800usb_write_tx_desc (diff) | |
| download | linux-df71c9cfceea801e7e26e2c74241758ef9c042e5.tar.xz linux-df71c9cfceea801e7e26e2c74241758ef9c042e5.zip | |
rt2x00: fix order of entry flags modification
In rt2800usb_work_txdone we check flags in order:
- ENTRY_OWNER_DEVICE_DATA
- ENTRY_DATA_STATUS_PENDING
- ENTRY_DATA_IO_FAILED
Modify flags in separate order in rt2x00usb_interrupt_txdone, to avoid
processing entries in _txdone with wrong flags or skip processing
ready entries.
Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index b6b4542c2460..7fbb55c9da82 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -262,23 +262,20 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb) struct queue_entry *entry = (struct queue_entry *)urb->context; struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - if (!test_and_clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) + if (!test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) return; - - if (rt2x00dev->ops->lib->tx_dma_done) - rt2x00dev->ops->lib->tx_dma_done(entry); - - /* - * Report the frame as DMA done - */ - rt2x00lib_dmadone(entry); - /* * Check if the frame was correctly uploaded */ if (urb->status) set_bit(ENTRY_DATA_IO_FAILED, &entry->flags); + /* + * Report the frame as DMA done + */ + rt2x00lib_dmadone(entry); + if (rt2x00dev->ops->lib->tx_dma_done) + rt2x00dev->ops->lib->tx_dma_done(entry); /* * Schedule the delayed work for reading the TX status * from the device. |