Input: return correct value when setting up absolute device via uinipt.
uinput_alloc_device() is supposed to return the number of bytes read,
the value is returned to uinput_write() and from there to userspace. If
EV_ABS is set then it returns the value from uinput_validate_absbits()
instead, which is zero when everything is ok instead of the count.
Signed-off-by: Ian Campbell <icampbell@arcom.com>
Acked-by: Aristeu Rozanski <aris@cathedrallabs.org>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 158c8e8..9871099 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -298,9 +298,11 @@
/* check if absmin/absmax/absfuzz/absflat are filled as
* told in Documentation/input/input-programming.txt */
if (test_bit(EV_ABS, dev->evbit)) {
- retval = uinput_validate_absbits(dev);
- if (retval < 0)
+ int err = uinput_validate_absbits(dev);
+ if (err < 0) {
+ retval = err;
kfree(dev->name);
+ }
}
exit: