linux-kernel - Re: [PATCH] bus: mhi: core: Fix a NULL vs IS_ERR check in mhi_create

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Date:   Tue, 7 Apr 2020 16:16:51 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Hemant Kumar <hemantk@...eaurora.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Siddartha Mohanadoss <smohanad@...eaurora.org>,
        Sujeev Dias <sdias@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] bus: mhi: core: Fix a NULL vs IS_ERR check in
 mhi_create_devices()

On Tue, Apr 07, 2020 at 12:31:33PM +0300, Dan Carpenter wrote:
> The mhi_alloc_device() function never returns NULL, it returns error
> pointers.
> 
> Fixes: da1c4f856924 ("bus: mhi: core: Add support for creating and destroying MHI devices")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Thanks Dan!

Regards,
Mani

> ---
>  drivers/bus/mhi/core/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
> index eb4256b81406..55928feea0c9 100644
> --- a/drivers/bus/mhi/core/main.c
> +++ b/drivers/bus/mhi/core/main.c
> @@ -294,7 +294,7 @@ void mhi_create_devices(struct mhi_controller *mhi_cntrl)
>  		    !(mhi_chan->ee_mask & BIT(mhi_cntrl->ee)))
>  			continue;
>  		mhi_dev = mhi_alloc_device(mhi_cntrl);
> -		if (!mhi_dev)
> +		if (IS_ERR(mhi_dev))
>  			return;
>  
>  		mhi_dev->dev_type = MHI_DEVICE_XFER;
> -- 
> 2.25.1
>