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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	kernel-janitors@vger.kernel.org
Cc: Alan Cox <alan@linux.intel.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	linux-media@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	devel@driverdev.osuosl.org, Kristian Beilke <beilke@posteo.de>
Subject: Re: [PATCH v1 05/10] staging: atomisp: Remove non-ACPI leftovers
Date: Wed, 20 Dec 2017 05:38:29 +0000	[thread overview]
Message-ID: <20171220053828.5wphhl6oc2sl3su5@mwanda> (raw)
In-Reply-To: <20171219205957.10933-5-andriy.shevchenko@linux.intel.com>

On Tue, Dec 19, 2017 at 10:59:52PM +0200, Andy Shevchenko wrote:
> @@ -914,9 +904,7 @@ static int lm3554_probe(struct i2c_client *client)
>  		dev_err(&client->dev, "gpio request/direction_output fail");
>  		goto fail2;
>  	}
> -	if (ACPI_HANDLE(&client->dev))
> -		err = atomisp_register_i2c_module(&flash->sd, NULL, LED_FLASH);
> -	return 0;
> +	return atomisp_register_i2c_module(&flash->sd, NULL, LED_FLASH);
>  fail2:
>  	media_entity_cleanup(&flash->sd.entity);
>  	v4l2_ctrl_handler_free(&flash->ctrl_handler);

Actually every place where we directly return a function call is wrong
and needs error handling added.  I've been meaning to write a Smatch
check for this because it's a common anti-pattern we don't check the
last function call for errors.

Someone could probably do the same in Coccinelle if they want.

regards,
dan carpenter


       reply	other threads:[~2017-12-20  5:38 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20171219205957.10933-1-andriy.shevchenko@linux.intel.com>
     [not found] ` <20171219205957.10933-5-andriy.shevchenko@linux.intel.com>
2017-12-20  5:38   ` Dan Carpenter [this message]
2017-12-20 10:30     ` [PATCH v1 05/10] staging: atomisp: Remove non-ACPI leftovers Julia Lawall
2018-01-02 10:26       ` Dan Carpenter
2018-01-02 10:36         ` Julia Lawall
2017-12-20 12:27     ` walter harms
2017-12-20 12:36     ` Julia Lawall

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