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ip2: return -EFAULT on copy_to_user errors 

copy_to_user() returns the number of bytes remaining but we want to return
a negative error code on errors.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: "Michael H. Warfield" <mhw@wittsend.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan Carpenter 2010-08-12 13:48:59 -07:00 committed by Greg Kroah-Hartman
parent f64ac9830b
commit 05254a207a
1 changed files with 2 additions and 0 deletions
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2
drivers/char/ip2/ip2main.c
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@ -2930,6 +2930,8 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
if ( pCh )
{
rc = copy_to_user(argp, pCh, sizeof(i2ChanStr));
if (rc)
rc = -EFAULT;
} else {
rc = -ENODEV;
}