linux-kernel - [PATCH 5.15 061/189] media: rockchip/rga: do proper error checking in probe

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Message-Id: <20220418121202.241741556@linuxfoundation.org>
Date:   Mon, 18 Apr 2022 14:11:21 +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, Dragan Simic <dragan.simic@...il.com>,
        Kyle Copperfield <kmcopper@...win1210.me>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 061/189] media: rockchip/rga: do proper error checking in probe

From: Kyle Copperfield <kmcopper@...win1210.me>

[ Upstream commit 6150f276073a1480030242a7e006a89e161d6cd6 ]

The latest fix for probe error handling contained a typo that causes
probing to fail with the following message:

  rockchip-rga: probe of ff680000.rga failed with error -12

This patch fixes the typo.

Fixes: e58430e1d4fd (media: rockchip/rga: fix error handling in probe)
Reviewed-by: Dragan Simic <dragan.simic@...il.com>
Signed-off-by: Kyle Copperfield <kmcopper@...win1210.me>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Reviewed-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/rockchip/rga/rga.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 6759091b15e0..d99ea8973b67 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -895,7 +895,7 @@ static int rga_probe(struct platform_device *pdev)
 	}
 	rga->dst_mmu_pages =
 		(unsigned int *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 3);
-	if (rga->dst_mmu_pages) {
+	if (!rga->dst_mmu_pages) {
 		ret = -ENOMEM;
 		goto free_src_pages;
 	}
-- 
2.35.1