linux-kernel - [PATCH 09/10] nvmem: core: fix return value

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Date:   Fri, 27 Jan 2023 10:40:14 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Dan Carpenter <error27@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 09/10] nvmem: core: fix return value

From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>

Dan Carpenter points out that the return code was not set in commit
60c8b4aebd8e ("nvmem: core: fix cleanup after dev_set_name()"), but
this is not the only issue - we also need to zero wp_gpio to prevent
gpiod_put() being called on an error value.

Cc: stable@...r.kernel.org
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <error27@...il.com>
Fixes: 60c8b4aebd8e ("nvmem: core: fix cleanup after dev_set_name()")
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/nvmem/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 563116405b3d..34ee9d36ee7b 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -783,6 +783,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
 						    GPIOD_OUT_HIGH);
 	if (IS_ERR(nvmem->wp_gpio)) {
 		rval = PTR_ERR(nvmem->wp_gpio);
+		nvmem->wp_gpio = NULL;
 		goto err_put_device;
 	}
 
-- 
2.25.1