asus_acpi: fix a memory leak in asus_hotk_get_info()
In the case of no match ( hotk->model == END_MODEL ), model sholud be
kfreed before return AE_OK.
This patch includes below fixes:
1. adds a missing kfree(model) before return AE_OK.
2. asus_hotk_get_info should return int, thus return 0 instead of AE_OK.
Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Karol Kozimor <sziwan@users.sourceforge.net> Cc: Matthew Garrett <mjg@redhat.com> Cc: Len Brown <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Matthew Garrett <mjg@redhat.com>