Commit 3fde85df authored Jun 04, 2010 by Dan Carpenter Committed by Greg Kroah-Hartman Jun 04, 2010

vt_ioctl: return -EFAULT on copy_from_user errors



copy_from_user() returns the number of bytes remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent c1bfffa9

drivers/char/vt_ioctl.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1303,7 +1303,9 @@ int vt_ioctl(struct tty_struct tty, struct file file,
		if (!perm)
		goto eperm;
		ret = copy_from_user(&ui, up, sizeof(struct unimapinit));
		if (!ret)
		if (ret)
		ret = -EFAULT;
		else
		con_clear_unimap(vc, &ui);
		break;
		}