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staging/lustre/lloop: Properly mark userspace pointers in lo/lloop_ioctl

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When casting unsigned long userspace pointer for use with
userspace-accessing functions, need to use __user attribute to make
sparse happy.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleg Drokin 2016-01-03 12:05:52 -05:00 • committed by Greg Kroah-Hartman
commit 6f9a3bd93f
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/lustre/lustre/llite/lloop.c
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@ -636,7 +636,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
else
fid_zero(&fid);
if (copy_to_user((struct lu_fid *)arg, &fid, sizeof(fid)))
if (copy_to_user((void __user *)arg, &fid, sizeof(fid)))
err = -EFAULT;
break;
}
@ -708,7 +708,7 @@ static enum llioc_iter lloop_ioctl(struct inode *unused, struct file *file,
dev = MKDEV(lloop_major, lo->lo_number);
/* quit if the used pointer is writable */
if (put_user((long)old_encode_dev(dev), (long *)arg)) {
if (put_user((long)old_encode_dev(dev), (long __user *)arg)) {
err = -EFAULT;
goto out;
}