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| author | Sujith <Sujith.Manoharan@atheros.com> | 2010-04-16 11:54:01 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-16 15:47:12 -0400 |
| commit | 6ce34ec11c6297562e70e27c57a24cd27d4cd2b1 (patch) | |
| tree | e2cc737d1c962cca801d61aa7a609df9dfc3bdef /drivers/net/wireless/ath/ath9k/wmi.h | |
| parent | eac8e385e9446e591aacbc9ef2c2a3b0836dd2d4 (diff) | |
| download | lwn-6ce34ec11c6297562e70e27c57a24cd27d4cd2b1.tar.gz lwn-6ce34ec11c6297562e70e27c57a24cd27d4cd2b1.zip | |
ath9k_htc: Handle WMI timeouts properly
If a WMI command has timed out for some reason,
a late WMI response would end up updating the
response region of a new WMI request that has been
issued in the meantime.
Fix this race condition by dropping a WMI response
if a new WMI command has been issued.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/wmi.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/wmi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/wmi.h b/drivers/net/wireless/ath/ath9k/wmi.h index fd8c9c5f4a05..611357158ecf 100644 --- a/drivers/net/wireless/ath/ath9k/wmi.h +++ b/drivers/net/wireless/ath/ath9k/wmi.h @@ -97,6 +97,7 @@ struct wmi { enum htc_endpoint_id ctrl_epid; struct mutex op_mutex; struct completion cmd_wait; + enum wmi_cmd_id last_cmd_id; u16 tx_seq_id; u8 *cmd_rsp_buf; u32 cmd_rsp_len; |