ath10k: fix return value check in wake_tx_q op

[Kalle Valo]

Erik Stromdahl <erik.stromdahl at gmail.com> wrote:

> ath10k_mac_tx_push_txq returns either a postive integer (length) on
> success or a negative error code on error.
> 
> The "if (ret) break;" statement will thus always break out of the loop
> immediately after ath10k_mac_tx_push_txq has returned (making the loop
> pointless).
> 
> A side effect of this fix is that we will iterate the queue until
> ath10k_mac_tx_push_txq returns -ENOENT. This will make sure the queue is
> not added back to ar->txqs when it is empty. This could potentially
> improve performance somewhat (I have seen a small improvement with SDIO
> devices).
> 
> Signed-off-by: Erik Stromdahl <erik.stromdahl at gmail.com>
> Signed-off-by: Kalle Valo <kvalo at codeaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

e3148cc5fecf ath10k: fix return value check in wake_tx_q op

-- 
https://patchwork.kernel.org/patch/10382789/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches