[PATCH 5.10.y-cip 12/27] mtd: hyperbus: rpc-if: Check return value of rpcif_sw_init()

Lad Prabhakar

commit 981387ed06b96908223a607f5fba6efa42728fc2 upstream.

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@...>
Signed-off-by: Vignesh Raghavendra <vigneshr@...>
Reviewed-by: Biju Das <biju.das.jz@...>
Reviewed-by: Wolfram Sang <wsa+renesas@...>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...>
Link: https://lore.kernel.org/r/20211025205631.21151-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
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);


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