mfd: dm355evm_msp: Return directly after a failed platform_device_alloc() in add_child()

The platform_device_put() function was called in one case by the
add_child() function during error handling even if the passed
variable "pdev" contained a null pointer.
Return directly in this case.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 14661ec..270e19c 100644 (file)
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -199,11 +199,8 @@ static struct device *add_child(struct i2c_client *client, const char *name,
        int                     status;
 
        pdev = platform_device_alloc(name, -1);
-       if (!pdev) {
-               dev_dbg(&client->dev, "can't alloc dev\n");
-               status = -ENOMEM;
-               goto err;
-       }
+       if (!pdev)
+               return ERR_PTR(-ENOMEM);
 
        device_init_wakeup(&pdev->dev, can_wakeup);
        pdev->dev.parent = &client->dev;