[PATCH v2 3/7] spi: spi-rpc-if: Check return value of rpcif_sw_init()

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

Fixes: eb8d6d464a27 ("spi: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Reviewed-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v1->v2:
 * Included RB tags
---
 drivers/spi/spi-rpc-if.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rpc-if.c b/drivers/spi/spi-rpc-if.c
index c53138ce0030..83796a4ead34 100644
--- a/drivers/spi/spi-rpc-if.c
+++ b/drivers/spi/spi-rpc-if.c
@@ -139,7 +139,9 @@ static int rpcif_spi_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	rpc = spi_controller_get_devdata(ctlr);
-	rpcif_sw_init(rpc, parent);
+	error = rpcif_sw_init(rpc, parent);
+	if (error)
+		return error;
 
 	platform_set_drvdata(pdev, ctlr);
 
-- 
2.17.1




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