3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

commit 28a2a2e1aedbe2d8b2301e6e0e4e63f6e4177aca upstream.

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 [off-list ref]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/input.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/input/input.c
+++ b/drivers/input/input.c

@@ -1866,6 +1866,10 @@ void input_set_capability(struct input_d
 		break;
 
 	case EV_ABS:
+		input_alloc_absinfo(dev);
+		if (!dev->absinfo)
+			return;
+
 		__set_bit(code, dev->absbit);
 		break;