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From: Eric Anholt <eric@anholt.net>
To: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Eric Anholt <eric@anholt.net>
Subject: [PATCH] drm/vc4: Fix NULL deref in HDMI init error path
Date: Mon,  4 Apr 2016 17:47:36 -0700	[thread overview]
Message-ID: <1459817256-18137-1-git-send-email-eric@anholt.net> (raw)

If you make it here other than through err_destroy_encoder, vc4->hdmi
is still NULL.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index d8b8649..fd2644d 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -573,7 +573,7 @@ err_unprepare_hsm:
 err_unprepare_pix:
 	clk_disable_unprepare(hdmi->pixel_clock);
 err_put_i2c:
-	put_device(&vc4->hdmi->ddc->dev);
+	put_device(&hdmi->ddc->dev);
 
 	return ret;
 }
-- 
2.7.0

                 reply	other threads:[~2016-04-05  0:47 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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