Input: uinput - convert to dynalloc allocation
Also introduce proper locking when creating/deleting device.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 8487607..6fd1a47a 100644
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -34,8 +34,7 @@
#define UINPUT_BUFFER_SIZE 16
#define UINPUT_NUM_REQUESTS 16
-/* state flags => bit index for {set|clear|test}_bit ops */
-#define UIST_CREATED 0
+enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
struct uinput_request {
int id;
@@ -52,11 +51,12 @@
struct uinput_device {
struct input_dev *dev;
- unsigned long state;
+ struct semaphore sem;
+ enum uinput_state state;
wait_queue_head_t waitq;
- unsigned char ready,
- head,
- tail;
+ unsigned char ready;
+ unsigned char head;
+ unsigned char tail;
struct input_event buff[UINPUT_BUFFER_SIZE];
struct uinput_request *requests[UINPUT_NUM_REQUESTS];
