public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Greg KH <gregkh@suse.de>
To: Bruce Beare <bbeare1@gmail.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Cleanups for: line length, printk KERN_ argument, stack frame size > 2048 (added a kmalloc/kfree), style/formatting errors, incorrect include files
Date: Fri, 9 Oct 2009 14:16:10 -0700	[thread overview]
Message-ID: <20091009211610.GA5005@suse.de> (raw)
In-Reply-To: <1255122698-12390-1-git-send-email-bbeare1@gmail.com>


Try changing one thing at a time per patch please.

There's some bugs in here:

> -		struct config_t dig_in_config[32];
> -		struct config_t dig_out_config[32];
> -		struct config_t chan_in_config[32];
> -		struct config_t chan_out_config[32];
>  		int i;
> +		config_data = kmalloc(sizeof(struct config_data_t), GFP_KERNEL);

Shouldn't that be:
		config_data = kmalloc(sizeof(struct config_data_t)*32, GFP_KERNEL);

Otherwise you overflow your buffer here:
>  
>  		for (i = 0; i < 32; i++) {
> -			dig_in_config[i].kind = 0;
> -			dig_in_config[i].bits = 0;
> -			dig_in_config[i].min = 0;
> -			dig_in_config[i].max = 0;
> -			dig_out_config[i].kind = 0;
> -			dig_out_config[i].bits = 0;
> -			dig_out_config[i].min = 0;
> -			dig_out_config[i].max = 0;
> -			chan_in_config[i].kind = 0;
> -			chan_in_config[i].bits = 0;
> -			chan_in_config[i].min = 0;
> -			chan_in_config[i].max = 0;
> -			chan_out_config[i].kind = 0;
> -			chan_out_config[i].bits = 0;
> -			chan_out_config[i].min = 0;
> -			chan_out_config[i].max = 0;
> +			config_data->dig_in_config[i].kind = 0;
> +			config_data->dig_in_config[i].bits = 0;
> +			config_data->dig_in_config[i].min = 0;
> +			config_data->dig_in_config[i].max = 0;
> +			config_data->dig_out_config[i].kind = 0;
> +			config_data->dig_out_config[i].bits = 0;
> +			config_data->dig_out_config[i].min = 0;
> +			config_data->dig_out_config[i].max = 0;
> +			config_data->chan_in_config[i].kind = 0;
> +			config_data->chan_in_config[i].bits = 0;
> +			config_data->chan_in_config[i].min = 0;
> +			config_data->chan_in_config[i].max = 0;
> +			config_data->chan_out_config[i].kind = 0;
> +			config_data->chan_out_config[i].bits = 0;
> +			config_data->chan_out_config[i].min = 0;
> +			config_data->chan_out_config[i].max = 0;
>  		}

Or am I mistaken?

thanks,

greg k-h

  reply	other threads:[~2009-10-09 21:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-09 21:11 [PATCH] Cleanups for: line length, printk KERN_ argument, stack frame size > 2048 (added a kmalloc/kfree), style/formatting errors, incorrect include files Bruce Beare
2009-10-09 21:16 ` Greg KH [this message]
2009-10-09 21:27   ` Randy Dunlap
2009-10-09 21:29     ` Greg KH
2009-10-09 21:41       ` Bruce B
2009-10-09 21:50         ` Greg KH
2009-10-09 21:31   ` Bruce B
2009-10-09 21:55     ` Daniel Walker
2009-10-09 21:23 ` Randy Dunlap
2009-10-09 21:29   ` Bruce B
2009-10-09 21:31     ` Randy Dunlap
2009-10-09 22:28 ` Jiri Slaby

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20091009211610.GA5005@suse.de \
    --to=gregkh@suse.de \
    --cc=bbeare1@gmail.com \
    --cc=devel@driverdev.osuosl.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=wfp5p@virginia.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox