drm/radeon: Avoid power table parsing memory leaks
authorKees Cook <keescook@chromium.org>
Mon, 3 May 2021 05:06:08 +0000 (22:06 -0700)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 10 May 2021 22:06:45 +0000 (18:06 -0400)
commit642f3ad00f9640a1a74c6e0da538c5f88d2d0117
treeac09238e471a9d6f0548f09c894c65cadf42d6dc
parent359615251034790abaa06b7b0e5635543e01d473
drm/radeon: Avoid power table parsing memory leaks

Avoid leaving a hanging pre-allocated clock_info if last mode is
invalid, and avoid heap corruption if no valid modes are found.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211537
Fixes: 6991b8f2a319 ("drm/radeon/kms: fix segfault in pm rework")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_atombios.c