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Input: return correct value when setting up absolute device via uinipt.

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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>
This commit is contained in:
Ian Campbell 2005-06-01 02:39:25 -05:00 committed by Dmitry Torokhov
parent c30b4c10d9
commit b6cbf3ef4f
1 changed files with 4 additions and 2 deletions
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6
drivers/input/misc/uinput.c
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@ -298,9 +298,11 @@ static int uinput_alloc_device(struct file *file, const char __user *buffer, siz
/* 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: