Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
Cc: Christian Lamparter <chunk...@googlemail.com>
Cc: "John W. Linville" <linvi...@tuxdriver.com>
Cc: linux-wirel...@vger.kernel.org
Cc: net...@vger.kernel.org
Signed-off-by: Ming Lei <ming....@canonical.com>
---
drivers/net/wireless/ath/carl9170/rx.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/carl9170/rx.c
b/drivers/net/wireless/ath/carl9170/rx.c
index 4684dd9..61f62a6 100644
--- a/drivers/net/wireless/ath/carl9170/rx.c
+++ b/drivers/net/wireless/ath/carl9170/rx.c
@@ -129,6 +129,7 @@ static int carl9170_check_sequence(struct ar9170 *ar,
unsigned int seq)
static void carl9170_cmd_callback(struct ar9170 *ar, u32 len, void *buffer)
{
+ unsigned long flags;
/*
* Some commands may have a variable response length
* and we cannot predict the correct length in advance.
@@ -148,7 +149,7 @@ static void carl9170_cmd_callback(struct ar9170 *ar, u32
len, void *buffer)
carl9170_restart(ar, CARL9170_RR_INVALID_RSP);
}
- spin_lock(&ar->cmd_lock);
+ spin_lock_irqsave(&ar->cmd_lock, flags);
if (ar->readbuf) {
if (len >= 4)
memcpy(ar->readbuf, buffer + 4, len - 4);
@@ -156,7 +157,7 @@ static void carl9170_cmd_callback(struct ar9170 *ar, u32
len, void *buffer)
ar->readbuf = NULL;
}
complete(&ar->cmd_wait);
- spin_unlock(&ar->cmd_lock);
+ spin_unlock_irqrestore(&ar->cmd_lock, flags);
}
void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
--
1.7.9.5
--
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