Input: allocate absinfo data when setting ABS capability

We need to make sure we allocate absinfo data when we are setting one of EV_ABS/ABS_XXX capabilities, otherwise we may bomb when we try to emit this event. Rested-by: Paul Cercueil <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
josf · Dec 31, 2013 · 28a2a2e · 28a2a2e
1 parent 2a4d815
commit 28a2a2e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/input/input.c b/drivers/input/input.c
@@ -1871,6 +1871,10 @@ void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int
 		break;
 
 	case EV_ABS:
+		input_alloc_absinfo(dev);
+		if (!dev->absinfo)
+			return;
+
 		__set_bit(code, dev->absbit);
 		break;