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Revision 25477f2398f39a35f110e02f6c7d8dd1023c47c1 authored by Dan Carpenter on 06 June 2010, 19:03:04 UTC, committed by Greg Kroah-Hartman on 30 June 2010, 15:18:14 UTC 
Staging: batman-adv: return -EFAULT on copy_to_user errors
 
copy_to_user() returns the number of bites remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1 parent f2102d3
Raw File
ide-disk_ioctl.c 
#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/hdreg.h>

#include "ide-disk.h"

static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
{ HDIO_GET_ADDRESS,	HDIO_SET_ADDRESS,   &ide_devset_address   },
{ HDIO_GET_MULTCOUNT,	HDIO_SET_MULTCOUNT, &ide_devset_multcount },
{ HDIO_GET_NOWERR,	HDIO_SET_NOWERR,    &ide_devset_nowerr	  },
{ HDIO_GET_WCACHE,	HDIO_SET_WCACHE,    &ide_devset_wcache	  },
{ HDIO_GET_ACOUSTIC,	HDIO_SET_ACOUSTIC,  &ide_devset_acoustic  },
{ 0 }
};

int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
		   unsigned int cmd, unsigned long arg)
{
	int err;

	err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
	if (err != -EOPNOTSUPP)
		return err;

	return generic_ide_ioctl(drive, bdev, cmd, arg);
}
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