linux-kernel - Re: [PATCH] [media] staging: Return -EINTR in s2250

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Date:	Sat, 17 Mar 2012 17:20:16 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	santosh prasad nayak <santoshprasadnayak@...il.com>
Cc:	mchehab@...radead.org, gregkh@...uxfoundation.org,
	khoroshilov@...ras.ru, linux-media@...r.kernel.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] [media] staging: Return -EINTR in s2250_probe() if fails to get lock.

Am Samstag, 17. März 2012, 17:00:36 schrieb santosh prasad nayak:
> Oliver,
> 
> The following changes are for review only  not a formal patch.
> 
> -------------------------------------------------------------------------------------------------------------
> -       if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
> +       mutex_lock(&usb->i2c_lock);
>                 data = kzalloc(16, GFP_KERNEL);
> -               if (data != NULL) {
> +               if(data == NULL) {
> +                       i2c_unregister_device(audio);
> +                       kfree(state);
> +                       return -ENOMEM;
> +               } else {
>                         int rc;
>                         rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
>                                                        data, 16, 1);
> @@ -657,7 +661,7 @@ static int s2250_probe(struct i2c_client *client,
>                         kfree(data);
>                 }
>                 mutex_unlock(&usb->i2c_lock);
> -       }
> +
> 
> ----------------------------------------------------------------------
> 
> 
> Is it ok ?

Hi,

well done. That's correct.

	Regards
		Oliver
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