linux-kernel - [PATCH 3.18 55/85] drm/gma500: fix psb_intel_lvds_mode

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Date:   Tue,  7 Aug 2018 20:51:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 3.18 55/85] drm/gma500: fix psb_intel_lvds_mode_valid()s return type

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Luc Van Oostenryck <luc.vanoostenryck@...il.com>

[ Upstream commit 2ea009095c6e7396915a1d0dd480c41f02985f79 ]

The method struct drm_connector_helper_funcs::mode_valid is defined
as returning an 'enum drm_mode_status' but the driver implementation
for this method, psb_intel_lvds_mode_valid(), uses an 'int' for it.

Fix this by using 'enum drm_mode_status' for psb_intel_lvds_mode_valid().

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180424131458.2060-1-luc.vanoostenryck@gmail.com
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/gma500/psb_intel_drv.h  |    2 +-
 drivers/gpu/drm/gma500/psb_intel_lvds.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/gma500/psb_intel_drv.h
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -251,7 +251,7 @@ extern int intelfb_remove(struct drm_dev
 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 				      const struct drm_display_mode *mode,
 				      struct drm_display_mode *adjusted_mode);
-extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 				     struct drm_display_mode *mode);
 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 					struct drm_property *property,
--- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -343,7 +343,7 @@ static void psb_intel_lvds_restore(struc
 	}
 }
 
-int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
 	struct drm_psb_private *dev_priv = connector->dev->dev_private;