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authorStanislaw Gruszka <sgruszka@redhat.com>2011-08-10 15:32:23 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-29 13:29:16 -0700
commit5af075e3d112a6d9c2fa53c1b99a5ee945e649fd (patch)
tree867adf11f2f753295189439030e843aa34847d98
parent4ca4e8168092fcf2c352b25556e786762668a2a4 (diff)
rt2x00: fix order of entry flags modification
commit df71c9cfceea801e7e26e2c74241758ef9c042e5 upstream. 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> 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00usb.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 8f90f626807..241a0991f2c 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.