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20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
27 lines
1.0 KiB
Diff
27 lines
1.0 KiB
Diff
From 3e52ea57180471250ba4bb426527ab9bbad4e5a4 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 8 Nov 2021 13:55:15 +0000
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Subject: [PATCH] drm: Fix double free from checking if gamma lut has
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been updated
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The code falls through to "fail" under all conditions, so there is no
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need for the drm_property_blob_put if the gamma lut hasn't been changed.
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Fixes: 9cca26674a2b "drm: Check whether the gamma lut has changed before updating"
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/drm_color_mgmt.c | 2 --
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1 file changed, 2 deletions(-)
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--- a/drivers/gpu/drm/drm_color_mgmt.c
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+++ b/drivers/gpu/drm/drm_color_mgmt.c
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@@ -330,8 +330,6 @@ static int drm_crtc_legacy_gamma_set(str
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memcmp(crtc_state->gamma_lut->data, blob_data, blob->length))
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replaced |= drm_property_replace_blob(&crtc_state->gamma_lut,
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use_gamma_lut ? blob : NULL);
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- else
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- drm_property_blob_put(blob);
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crtc_state->color_mgmt_changed |= replaced;
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ret = drm_atomic_commit(state);
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