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authorAmitkumar Karwar <akarwar@marvell.com>2014-04-14 15:31:06 -0700
committerJohn W. Linville <linville@tuxdriver.com>2014-04-15 13:27:05 -0400
commitf8d2b9209ad648a8e9aa973d32fb64aa2ab01d00 (patch)
treefc5ff83e3297e5a6710ee2301d964f327aa61a80 /drivers/net
parent20474129d8bb0e6f113634f4f0f4f1584d0beed2 (diff)
downloadop-kernel-dev-f8d2b9209ad648a8e9aa973d32fb64aa2ab01d00.zip
op-kernel-dev-f8d2b9209ad648a8e9aa973d32fb64aa2ab01d00.tar.gz
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/mwifiex/sta_ioctl.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 8942706..536c14a 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -60,9 +60,10 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
int status;
/* Wait for completion */
- status = wait_event_interruptible(adapter->cmd_wait_q.wait,
- *(cmd_queued->condition));
- if (status) {
+ status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
+ *(cmd_queued->condition),
+ (12 * HZ));
+ if (status <= 0) {
dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
mwifiex_cancel_all_pending_cmd(adapter);
return status;
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