linux-kernel - [PATCH 15/33] fbdev/atyfb: lock_fb

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Message-Id: <20190528090304.9388-16-daniel.vetter@ffwll.ch>
Date:   Tue, 28 May 2019 11:02:46 +0200
From:   Daniel Vetter <daniel.vetter@...ll.ch>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     DRI Development <dri-devel@...ts.freedesktop.org>,
        Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
        linux-fbdev@...r.kernel.org,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Sam Ravnborg <sam@...nborg.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Mikulas Patocka <mpatocka@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Ville Syrjälä <syrjala@....fi>
Subject: [PATCH 15/33] fbdev/atyfb: lock_fb_info can't fail

It's properly protected by reboot_lock.

Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Mikulas Patocka <mpatocka@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: "Ville Syrjälä" <syrjala@....fi>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
---
 drivers/video/fbdev/aty/atyfb_base.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index b6fe103df145..eebb62d82a23 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3916,8 +3916,7 @@ static int atyfb_reboot_notify(struct notifier_block *nb,
 	if (!reboot_info)
 		goto out;
 
-	if (!lock_fb_info(reboot_info))
-		goto out;
+	lock_fb_info(reboot_info);
 
 	par = reboot_info->par;
 
-- 
2.20.1