linux-kernel - [PATCH] soc: qcom: pmic_glink: Handle the return value of pmic_glink

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Date: Fri, 10 May 2024 16:31:56 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: andersson@...nel.org,
	konrad.dybcio@...aro.org
Cc: linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] soc: qcom: pmic_glink: Handle the return value of pmic_glink_init

As platform_driver_register() and register_rpmsg_driver() can return
error numbers, it should be better to check the return value and deal
with the exception.

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/soc/qcom/pmic_glink.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index 40fb09d69014..8534a9692c45 100644
--- a/drivers/soc/qcom/pmic_glink.c
+++ b/drivers/soc/qcom/pmic_glink.c
@@ -369,8 +369,17 @@ static struct platform_driver pmic_glink_driver = {
 
 static int pmic_glink_init(void)
 {
-	platform_driver_register(&pmic_glink_driver);
-	register_rpmsg_driver(&pmic_glink_rpmsg_driver);
+	int ret;
+
+	ret = platform_driver_register(&pmic_glink_driver);
+	if (ret < 0)
+		return ret;
+
+	ret = register_rpmsg_driver(&pmic_glink_rpmsg_driver);
+	if (ret < 0) {
+		platform_driver_unregister(&pmic_glink_driver);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.25.1