linux-kernel - [PATCH] mwifiex: do not return success when command times out

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Message-ID: <20150430235202.GA35256@dtor-ws>
Date:	Thu, 30 Apr 2015 16:52:02 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Amitkumar Karwar <akarwar@...vell.com>
Cc:	Avinash Patil <patila@...vell.com>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mwifiex: do not return success when command times out

wait_event_interruptible_timeout() returns 0 upon timeout. We should
convert it to a negative error code (such as -ETIMEDOUT) instead of
returning it directly, as return code of 0 indicates that command was
executed.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/net/wireless/mwifiex/sta_ioctl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 0599e41..a0bc26c 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -64,6 +64,8 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
 						  *(cmd_queued->condition),
 						  (12 * HZ));
 	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
 		dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
 		mwifiex_cancel_all_pending_cmd(adapter);
 		return status;
-- 
2.2.0.rc0.207.ga3a616c


-- 
Dmitry
--
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