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| author |  Nikias Bassen | 2020-01-17 05:11:37 +0100 |
|---|---|---|
| committer | Nikias Bassen | 2020-01-17 05:11:37 +0100 |
| commit | 7c7a897e1e2e63c2aa9416844bd96b2910b81479 (patch) | |
| tree | b0d529129c7ebab2ec37ce9474f9573666e868f9 | |
| parent | ec5ff91cfabd30637f8af8f5c79baf4d7818ce57 (diff) | |
| download | usbmuxd-7c7a897e1e2e63c2aa9416844bd96b2910b81479.tar.gz usbmuxd-7c7a897e1e2e63c2aa9416844bd96b2910b81479.tar.bz2 | |
device: Fix potential deadlock (#130)
| -rw-r--r-- | src/device.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/device.c b/src/device.c index 87a36cc..5e32ce2 100644 --- a/src/device.c +++ b/src/device.c @@ -147,7 +147,6 @@ static struct mux_device* get_mux_device_for_id(int device_id) static struct mux_connection* get_mux_connection(int device_id, struct mux_client *client) { struct mux_connection *conn = NULL; - pthread_mutex_lock(&device_list_mutex); FOREACH(struct mux_device *dev, &device_list) { if(dev->id == device_id) { FOREACH(struct mux_connection *lconn, &dev->connections) { @@ -159,7 +158,6 @@ static struct mux_connection* get_mux_connection(int device_id, struct mux_clien break; } } ENDFOREACH - pthread_mutex_unlock(&device_list_mutex); return conn; } @@ -466,8 +464,9 @@ static int send_tcp_ack(struct mux_connection *conn) */ void device_client_process(int device_id, struct mux_client *client, short events) { + pthread_mutex_lock(&device_list_mutex); struct mux_connection *conn = get_mux_connection(device_id, client); - + pthread_mutex_unlock(&device_list_mutex); if(!conn) { usbmuxd_log(LL_WARNING, "Could not find connection for device %d client %p", device_id, client); return; |