rt2x00: do not pause queue unconditionally on error path

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[ Upstream commit 6dd80efd75 ]

Pausing queue without checking threshold is racy with txdone path.
Moreover we do not need pause queue on any error, but only if queue
is full - in case when we send RTS frame ( other cases of almost full
queue are already handled in rt2x00queue_write_tx_frame() ).

Patch fixes of theoretically possible problem of pausing empty
queue.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Tested-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Stanislaw Gruszka 2017-12-19 12:33:56 +01:00 • committed by Greg Kroah-Hartman

parent 1530dcc903

commit f722a6a611

1 changed files with 14 additions and 8 deletions

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drivers/net/wireless/ralink/rt2x00/rt2x00mac.c

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