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    Subject[PATCH 5.16 0118/1039] mtd: hyperbus: rpc-if: Check return value of rpcif_sw_init()
    Date
    From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

    [ Upstream commit 981387ed06b96908223a607f5fba6efa42728fc2 ]

    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>
    Signed-off-by: Vignesh Raghavendra <vigneshr@ti.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>
    Link: https://lore.kernel.org/r/20211025205631.21151-5-prabhakar.mahadev-lad.rj@bp.renesas.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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 ecb050ba95cdf..367b0d72bf622 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);

    --
    2.34.1


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