drm/amdgpu: avoid a possible array overflow
authorAlex Deucher <alexander.deucher@amd.com>
Wed, 24 Aug 2016 16:31:36 +0000 (12:31 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 7 Sep 2016 06:32:42 +0000 (08:32 +0200)
commit9c22155c5a39dc452c59534195712f57f512b063
tree25df33d97a1cf57a22529c345c68197c1807c277
parent65317dbcf37367350276967ff9e3b4647054cb64
drm/amdgpu: avoid a possible array overflow

commit e1718d97aa88ea44a6a8f50ff464253dd0dacf01 upstream.

When looking up the connector type make sure the index
is valid.  Avoids a later crash if we read past the end
of the array.

Workaround for bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97460

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c