[ Upstream commit 4d8f727b ]

The loop exits with "timeout" set to -1 not to 0.

Fixes: 1158f0f1 ("Input: add support for Nomadik SKE keypad controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>