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mwifiex: fix hung task on command timeout
Sometimes when command timeout occurs due to a firmware or hardware bug, there may be some synchronous commands in command queue. These commands are never downloaded to firmware causing hung task warnings. This patch replaces wait_event_interruptible call with wait_event_interruptible_timeout to fix the issue. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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1 changed files with 4 additions and 3 deletions
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@ -60,9 +60,10 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
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int status;
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int status;
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/* Wait for completion */
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/* Wait for completion */
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status = wait_event_interruptible(adapter->cmd_wait_q.wait,
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status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
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*(cmd_queued->condition));
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*(cmd_queued->condition),
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if (status) {
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(12 * HZ));
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if (status <= 0) {
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dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
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dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
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mwifiex_cancel_all_pending_cmd(adapter);
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mwifiex_cancel_all_pending_cmd(adapter);
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return status;
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return status;
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