From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 19 Jun 2012 09:33:06 +0000 (+0200)
Subject: drm/edid: don't return stack garbage from supports_rb
X-Git-Tag: v3.2.22~28
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=707799fd0d6ccc157f40d9a6685e97a65bea7b71;p=thirdparty%2Fkernel%2Fstable.git

drm/edid: don't return stack garbage from supports_rb

commit b196a4980ff7bb54db478e2a408dc8b12be15304 upstream.

We need to initialize this to false, because the is_rb callback only
ever sets it to true.

Noticed while reading through the code.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3e927ce7557d6..a1ee634c98509 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -585,7 +585,7 @@ static bool
 drm_monitor_supports_rb(struct edid *edid)
 {
 	if (edid->revision >= 4) {
-		bool ret;
+		bool ret = false;
 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
 		return ret;
 	}