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airo: use simple_read_from_buffer()

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Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Akinobu Mita 2008-06-09 16:44:30 -07:00 • committed by John W. Linville
parent a9f853ddd3
commit cc0d9ff2c9
1 changed files with 3 additions and 12 deletions
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15
drivers/net/wireless/airo.c
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@ -4561,22 +4561,13 @@ static ssize_t proc_read( struct file *file,
size_t len, size_t len,
loff_t *offset ) loff_t *offset )
{ {
loff_t pos = *offset; struct proc_data *priv = file->private_data;
struct proc_data *priv = (struct proc_data*)file->private_data;
if (!priv->rbuffer) if (!priv->rbuffer)
return -EINVAL; return -EINVAL;
if (pos < 0) return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
return -EINVAL; priv->readlen);
if (pos >= priv->readlen)
return 0;
if (len > priv->readlen - pos)
len = priv->readlen - pos;
if (copy_to_user(buffer, priv->rbuffer + pos, len))
return -EFAULT;
*offset = pos + len;
return len;
} }
/* /*