[PATCH v2 4/7] mtd: hyperbus: rpc-if: Check return value of rpcif_sw_init()

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
	Rob Herring <robh+dt@kernel.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Mark Brown <broonie@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Sergei Shtylyov <sergei.shtylyov@gmail.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mtd@lists.infradead.org, linux-spi@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org,
	Prabhakar <prabhakar.csengg@gmail.com>,
	Biju Das <biju.das.jz@bp.renesas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH v2 4/7] mtd: hyperbus: rpc-if: Check return value of rpcif_sw_init()
Date: Mon, 25 Oct 2021 21:56:28 +0100	[thread overview]
Message-ID: <20211025205631.21151-5-prabhakar.mahadev-lad.rj@bp.renesas.com> (raw)
In-Reply-To: <20211025205631.21151-1-prabhakar.mahadev-lad.rj@bp.renesas.com>

rpcif_sw_init() can fail so make sure we check the return value
of it and on error exit rpcif_hb_probe() callback with error code.

Fixes: 5de15b610f78 ("mtd: hyperbus: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v1->v2:
 * Included RB tags
---
 drivers/mtd/hyperbus/rpc-if.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/hyperbus/rpc-if.c b/drivers/mtd/hyperbus/rpc-if.c
index ecb050ba95cd..367b0d72bf62 100644
--- a/drivers/mtd/hyperbus/rpc-if.c
+++ b/drivers/mtd/hyperbus/rpc-if.c
@@ -124,7 +124,9 @@ static int rpcif_hb_probe(struct platform_device *pdev)
 	if (!hyperbus)
 		return -ENOMEM;
 
-	rpcif_sw_init(&hyperbus->rpc, pdev->dev.parent);
+	error = rpcif_sw_init(&hyperbus->rpc, pdev->dev.parent);
+	if (error)
+		return error;
 
 	platform_set_drvdata(pdev, hyperbus);
 
-- 
2.17.1

