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[3.15] mwifiex: process event before command response

Message ID 1397514666-4656-1-git-send-email-bzhao@marvell.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Bing Zhao April 14, 2014, 10:31 p.m. UTC 
From: Amitkumar Karwar <akarwar@marvell.com>

During extended scan, SCAN report event is always followed by
command response. Sometimes It is observed that command response
is processed before SCAN report which leads to a crash, because
current command node is cleared while handling the response.
This patch makes sure that driver's main thread gives priority
to events over command responses.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Maithili Hinge <maithili@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
---
 drivers/net/wireless/mwifiex/main.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
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Patch

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 77db088..9c771b3 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -292,6 +292,12 @@  process_start:
 			while ((skb = skb_dequeue(&adapter->usb_rx_data_q)))
 				mwifiex_handle_rx_packet(adapter, skb);
 
+		/* Check for event */
+		if (adapter->event_received) {
+			adapter->event_received = false;
+			mwifiex_process_event(adapter);
+		}
+
 		/* Check for Cmd Resp */
 		if (adapter->cmd_resp_received) {
 			adapter->cmd_resp_received = false;
@@ -304,12 +310,6 @@  process_start:
 			}
 		}
 
-		/* Check for event */
-		if (adapter->event_received) {
-			adapter->event_received = false;
-			mwifiex_process_event(adapter);
-		}
-
 		/* Check if we need to confirm Sleep Request
 		   received previously */
 		if (adapter->ps_state == PS_STATE_PRE_SLEEP) {