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btrfs: replace EINVAL with ERANGE for resize when ULLONG_MAX

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To be accurate about the error case,
if the new size is beyond ULLONG_MAX, return ERANGE instead of EINVAL.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Gui Hecheng
2014-05-29 09:19:58 +08:00
committed by Chris Mason
parent b05fd8742f
commit 902c68a4da
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/ioctl.c
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@@ -1593,7 +1593,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
new_size = old_size - new_size; new_size = old_size - new_size;
} else if (mod > 0) { } else if (mod > 0) {
if (new_size > ULLONG_MAX - old_size) { if (new_size > ULLONG_MAX - old_size) {
ret = -EINVAL; ret = -ERANGE;
goto out_free; goto out_free;
} }
new_size = old_size + new_size; new_size = old_size + new_size;