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authorVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>2014-10-28 16:50:06 +0200
committerJohn W. Linville <linville@tuxdriver.com>2014-10-30 15:26:49 -0400
commitcded936962a3be2f8fe1f0b4a4e3c45d8a8047ce (patch)
tree6b6307efdcf38f598d20ad7e27c9a49f84976f6a /drivers
parent84936626efbfacaf53505020610ae275fae2bf88 (diff)
wil6210: do not attempt FW recovery if interface is down
When interface is down, recovery flow should not be attempted. Next ndo_open() will trigger target reset, that is FW recovery. Doing recovery while interface is down cause internal "up", leaving internal driver state in conflict with network stack. Then, when network stack will call ndo_open(), kernel oops will be triggered. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/wil6210/main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 6500caf8d609..79003844008a 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -223,6 +223,11 @@ static void wil_fw_error_worker(struct work_struct *work)
wil_dbg_misc(wil, "fw error worker\n");
+ if (!netif_running(wil_to_ndev(wil))) {
+ wil_info(wil, "No recovery - interface is down\n");
+ return;
+ }
+
/* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
* passed since last recovery attempt
*/