From: Tim Gardner <tim.gardner@canonical.com>
Date: Mon, 11 Feb 2013 21:34:32 +0000 (-0700)
Subject: drm/radeon: Avoid NULL pointer dereference from atom_index_iio() allocation failure
X-Git-Tag: v3.9-rc1~83^2~7^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e34d0945ed16aeb72c863be4efe4cd0c62f9c53;p=pandora-kernel.git

drm/radeon: Avoid NULL pointer dereference from atom_index_iio() allocation failure

Smatch anlysis:

drivers/gpu/drm/radeon/atom.c:1242 atom_index_iio() error: potential null
 dereference 'ctx->iio'.  (kzalloc returns null)

Also cleaned up some checks before calls to kfree(). kfree(NULL) is OK.

Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Michel Dänzer" <michel.daenzer@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

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