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-rw-r--r--drivers/ieee1394/raw1394.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index d1594427601..2cf4ae75bec 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2268,6 +2268,8 @@ static ssize_t raw1394_write(struct file *file, const char __user * buffer,
return -EFAULT;
}
+ mutex_lock(&fi->state_mutex);
+
switch (fi->state) {
case opened:
retval = state_opened(fi, req);
@@ -2282,6 +2284,8 @@ static ssize_t raw1394_write(struct file *file, const char __user * buffer,
break;
}
+ mutex_unlock(&fi->state_mutex);
+
if (retval < 0) {
free_pending_request(req);
} else {