releases/5.12.19/drm-gma500-add-the-missed-drm_gem_object_put-in-psb_.patch

From 33014573b636d76171e62b07953ed5817919d29d Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Tue, 29 Jun 2021 19:59:56 +0800
Subject: drm/gma500: Add the missed drm_gem_object_put() in
 psb_user_framebuffer_create()

From: Jing Xiangfeng <jingxiangfeng@huawei.com>

[ Upstream commit cd8f318fbd266b127ffc93cc4c1eaf9a5196fafb ]

psb_user_framebuffer_create() misses to call drm_gem_object_put() in an
error path. Add the missed function call to fix it.

Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210629115956.15160-1-jingxiangfeng@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/gma500/framebuffer.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index ebe9dccf2d83..0b8648396fb2 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -352,6 +352,7 @@ static struct drm_framebuffer *psb_user_framebuffer_create
 			 const struct drm_mode_fb_cmd2 *cmd)
 {
 	struct drm_gem_object *obj;
+	struct drm_framebuffer *fb;
 
 	/*
 	 *	Find the GEM object and thus the gtt range object that is
@@ -362,7 +363,11 @@ static struct drm_framebuffer *psb_user_framebuffer_create
 		return ERR_PTR(-ENOENT);
 
 	/* Let the core code do all the work */
-	return psb_framebuffer_create(dev, cmd, obj);
+	fb = psb_framebuffer_create(dev, cmd, obj);
+	if (IS_ERR(fb))
+		drm_gem_object_put(obj);
+
+	return fb;
 }
 
 static int psbfb_probe(struct drm_fb_helper *fb_helper,
-- 
2.30.2