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Message-Id: <20220124184105.287955195@linuxfoundation.org>
Date: Mon, 24 Jan 2022 19:34:02 +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,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
Biju Das <biju.das.jz@...renesas.com>,
Wolfram Sang <wsa+renesas@...g-engineering.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 125/846] memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
[ Upstream commit 818fdfa89baac77a8df5a2c30f4fb798cc937aa0 ]
Make sure we return error in case devm_ioremap_resource() fails for dirmap
resource.
Fixes: ca7d8b980b67 ("memory: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Link: https://lore.kernel.org/r/20211025205631.21151-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/memory/renesas-rpc-if.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index 77a011d5ff8c1..8618702233002 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -244,7 +244,7 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dirmap");
rpc->dirmap = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rpc->dirmap))
- rpc->dirmap = NULL;
+ return PTR_ERR(rpc->dirmap);
rpc->size = resource_size(res);
rpc->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
--
2.34.1
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