ath5k: fix error handling in ath5k_hw_dma_stop

Review spotted a problem with the error handling in ath5k_hw_dma_stop:
a successful return from ath5k_hw_stop_tx_dma will be treated as
an error, so we always bail out of the loop after processing a single
active queue.  As a result, we may not actually stop some queues during
reset.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Bruno Randolf <br1@einfach.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/dma.c b/drivers/net/wireless/ath/ath5k/dma.c
index 0064be7..21091c2 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/dma.c
+++ b/drivers/net/wireless/ath/ath5k/dma.c
@@ -838,9 +838,9 @@ int ath5k_hw_dma_stop(struct ath5k_hw *ah)
        for (i = 0; i < qmax; i++) {
                err = ath5k_hw_stop_tx_dma(ah, i);
                /* -EINVAL -> queue inactive */
-               if (err != -EINVAL)
+               if (err && err != -EINVAL)
                        return err;
        }
 
-       return err;
+       return 0;
 }