[PATCH v2 2/7] nvmem: fix another memory leak in error path

[Bartosz Golaszewski <brgl@xxxxxxxx>]

From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

The nvmem struct is only freed on the first error check after its
allocation and leaked after that. Fix it with a new label.

Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
 drivers/nvmem/core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index b0be03d5f240..c9b3f4047154 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -343,10 +343,8 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
 		return ERR_PTR(-ENOMEM);
 
 	rval  = ida_simple_get(&nvmem_ida, 0, 0, GFP_KERNEL);
-	if (rval < 0) {
-		kfree(nvmem);
-		return ERR_PTR(rval);
-	}
+	if (rval < 0)
+		goto err_free_nvmem;
 	if (config->wp_gpio)
 		nvmem->wp_gpio = config->wp_gpio;
 	else
@@ -432,6 +430,8 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
 	put_device(&nvmem->dev);
 err_ida_remove:
 	ida_simple_remove(&nvmem_ida, nvmem->id);
+err_free_nvmem:
+	kfree(nvmem);
 
 	return ERR_PTR(rval);
 }
-- 
2.25.0