From: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
When next scan command is delayed due to Tx traffic and
meanwhile synchronous command is received followed by a signal,
we cance all pending commands. NULL pointer dereference is seen
in this case while queueing next command in scan delay timer.
This patch adds a check to fix this issue.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 7b4502f..77db088 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -38,7 +38,8 @@ static void scan_delay_timer_fn(unsigned long data)
if (adapter->surprise_removed)
return;
- if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
+ if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT ||
+ !adapter->scan_processing) {
/*
* Abort scan operation by cancelling all pending scan
* commands
--
1.8.2.3
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