linux-kernel - [PATCH] mfd: sm501: Check for driver register failure

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Date:   Fri, 28 Dec 2018 14:03:15 -0600
From:   Aditya Pakki <pakki001@....edu>
To:     pakki001@....edu
Cc:     kjlu@....edu, Lee Jones <lee.jones@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: sm501: Check for driver register failure

While initializing the driver, the function platform_driver_register can
fail and return an error. Consistent with other invocations, this patch
returns the error upstream.

Signed-off-by: Aditya Pakki <pakki001@....edu>
---
 drivers/mfd/sm501.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index a530972c5a7e..62cf62636ae6 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1729,7 +1729,11 @@ static struct platform_driver sm501_plat_driver = {
 
 static int __init sm501_base_init(void)
 {
-	platform_driver_register(&sm501_plat_driver);
+	int rc;
+
+	rc = platform_driver_register(&sm501_plat_driver);
+	if (rc)
+		return rc;
 	return pci_register_driver(&sm501_pci_driver);
 }
 
-- 
2.17.1