linux-kernel - [PATCH 4.19 091/264] video: fbdev: radeon: Fix memleak in radeonfb_pci

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Message-Id: <20201027135434.974709383@linuxfoundation.org>
Date:   Tue, 27 Oct 2020 14:52:29 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dinghao Liu <dinghao.liu@....edu.cn>,
        Mathieu Malaterre <malat@...ian.org>,
        Kangjie Lu <kjlu@....edu>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 091/264] video: fbdev: radeon: Fix memleak in radeonfb_pci_register

From: Dinghao Liu <dinghao.liu@....edu.cn>

[ Upstream commit fe6c6a4af2be8c15bac77f7ea160f947c04840d1 ]

When radeon_kick_out_firmware_fb() fails, info should be
freed just like the subsequent error paths.

Fixes: 069ee21a82344 ("fbdev: Fix loading of module radeonfb on PowerMac")
Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
Reviewed-by: Mathieu Malaterre <malat@...ian.org>
Cc: Kangjie Lu <kjlu@....edu>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200825062900.11210-1-dinghao.liu@zju.edu.cn
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/video/fbdev/aty/radeon_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index e8594bbaea609..c6109a385cac9 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -2327,7 +2327,7 @@ static int radeonfb_pci_register(struct pci_dev *pdev,
 
 	ret = radeon_kick_out_firmware_fb(pdev);
 	if (ret)
-		return ret;
+		goto err_release_fb;
 
 	/* request the mem regions */
 	ret = pci_request_region(pdev, 0, "radeonfb framebuffer");
-- 
2.25.1