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authorIdo Yariv <ido@wizery.com>2012-07-24 19:18:49 +0300
committerLuciano Coelho <luca@coelho.fi>2012-09-27 12:13:50 +0300
commit4cc533830b7e6b309e8b73196c410951fc2bed91 (patch)
treefe993f5d87bb3e2ed25756ff7c71ced206f6fa98 /drivers/net/wireless/ti/wl18xx
parent9b1a0a7771a62c3af4dce83e7cfd199367bd84ff (diff)
downloadvexpress-lsk-4cc533830b7e6b309e8b73196c410951fc2bed91.tar.gz
wlcore: Prevent interaction with HW after recovery is queued
When a function requests to recover, it would normally abort and will not send any additional commands to the HW. However, other threads may not be aware of the failure and could try to communicate with the HW after a recovery was queued, but before the recovery work began. Fix this by introducing an intermediate state which is set when recovery is queued, and modify all state checks accordingly. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <luca@coelho.fi>
Diffstat (limited to 'drivers/net/wireless/ti/wl18xx')
-rw-r--r--drivers/net/wireless/ti/wl18xx/debugfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ti/wl18xx/debugfs.c b/drivers/net/wireless/ti/wl18xx/debugfs.c
index 3ce6f1039af..7f1669cdea0 100644
--- a/drivers/net/wireless/ti/wl18xx/debugfs.c
+++ b/drivers/net/wireless/ti/wl18xx/debugfs.c
@@ -220,7 +220,7 @@ static ssize_t clear_fw_stats_write(struct file *file,
mutex_lock(&wl->mutex);
- if (wl->state == WL1271_STATE_OFF)
+ if (unlikely(wl->state != WLCORE_STATE_ON))
goto out;
ret = wl18xx_acx_clear_statistics(wl);