ath10k: sdio: fix compile warning

As suggested by Arnd Bergmann, replace
"while (time_before_...) {}"
with
"do {} while (time_before_...)"

This fixes the following warnings detected by gcc 4.1.2:

drivers/net/wireless/ath/ath10k/sdio.c: In function
‘ath10k_sdio_mbox_rxmsg_pending_handler’:
drivers/net/wireless/ath/ath10k/sdio.c:676: warning: ‘ret’ may be used uninitialized in this function

...

drivers/net/wireless/ath/ath10k/sdio.c: In function
‘ath10k_sdio_irq_handler’:
drivers/net/wireless/ath/ath10k/sdio.c:1331: warning: ‘ret’ may be used uninitialized in this function

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 859ed87..48268f0 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -683,7 +683,7 @@ static int ath10k_sdio_mbox_rxmsg_pending_handler(struct ath10k *ar,
        lookaheads[0] = msg_lookahead;
 
        timeout = jiffies + SDIO_MBOX_PROCESSING_TIMEOUT_HZ;
-       while (time_before(jiffies, timeout)) {
+       do {
                /* Try to allocate as many HTC RX packets indicated by
                 * n_lookaheads.
                 */
@@ -719,7 +719,7 @@ static int ath10k_sdio_mbox_rxmsg_pending_handler(struct ath10k *ar,
                 * performance in high throughput situations.
                 */
                *done = false;
-       }
+       } while (time_before(jiffies, timeout));
 
        if (ret && (ret != -ECANCELED))
                ath10k_warn(ar, "failed to get pending recv messages: %d\n",
@@ -1336,11 +1336,11 @@ static void ath10k_sdio_irq_handler(struct sdio_func *func)
        sdio_release_host(ar_sdio->func);
 
        timeout = jiffies + ATH10K_SDIO_HIF_COMMUNICATION_TIMEOUT_HZ;
-       while (time_before(jiffies, timeout) && !done) {
+       do {
                ret = ath10k_sdio_mbox_proc_pending_irqs(ar, &done);
                if (ret)
                        break;
-       }
+       } while (time_before(jiffies, timeout) && !done);
 
        sdio_claim_host(ar_sdio->func);