Re: [PATCH] Cleanups for: line length, printk KERN_ argument,stack frame size > 2048 (added a kmalloc/kfree), style/formatting errors,incorrect include files

From: Greg KH
Date: Fri Oct 09 2009 - 17:20:20 EST



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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/