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    SubjectRe: [PATCH 3/6] mfd: dm355evm_msp: Return directly after a failed platform_device_alloc() in add_child()
    On Sun, 26 Jun 2016, SF Markus Elfring wrote:

    > From: Markus Elfring <elfring@users.sourceforge.net>
    > Date: Sun, 26 Jun 2016 13:40:35 +0200
    >
    > 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>
    > ---
    > drivers/mfd/dm355evm_msp.c | 7 ++-----
    > 1 file changed, 2 insertions(+), 5 deletions(-)

    Applied, thanks.

    > diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
    > index 14661ec..270e19c 100644
    > --- 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;

    --
    Lee Jones
    Linaro STMicroelectronics Landing Team Lead
    Linaro.org │ Open source software for ARM SoCs
    Follow Linaro: Facebook | Twitter | Blog

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