linux-kernel - [PATCH] drm/gma500: Add the missed drm_gem_object_put() in psb_user_framebuffer

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Date:   Tue, 29 Jun 2021 19:59:56 +0800
From:   Jing Xiangfeng <jingxiangfeng@...wei.com>
To:     <patrik.r.jakobsson@...il.com>, <airlied@...ux.ie>,
        <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <jingxiangfeng@...wei.com>
Subject: [PATCH] drm/gma500: Add the missed drm_gem_object_put() in psb_user_framebuffer_create()

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@...wei.com>
---
 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,
-- 
2.26.0.106.g9fadedd