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use simple_read_from_buffer() in fs/

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Cleanup using simple_read_from_buffer() in binfmt_misc, configfs, and sysfs.

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2007-05-09 02:33:32 -07:00 • committed by Linus Torvalds
parent 884c3d7510
commit 92f4c701aa
3 changed files with 5 additions and 74 deletions
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13
fs/binfmt_misc.c
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@ -675,19 +675,8 @@ static ssize_t
bm_status_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
{
char *s = enabled ? "enabled" : "disabled";
int len = strlen(s);
loff_t pos = *ppos;
if (pos < 0)
return -EINVAL;
if (pos >= len)
return 0;
if (len < pos + nbytes)
nbytes = len - pos;
if (copy_to_user(buf, s + pos, nbytes))
return -EFAULT;
*ppos = pos + nbytes;
return nbytes;
return simple_read_from_buffer(buf, nbytes, ppos, s, strlen(s));
}
static ssize_t bm_status_write(struct file * file, const char __user * buffer,