From: ZhangZhen <zhenzhang.zhang@huawei.com>
Date: Tue, 13 May 2014 08:36:08 +0000 (+0800)
Subject: btrfs: replace simple_strtoull() with kstrtoull()
X-Git-Tag: firefly_0821_release~176^2~3585^2~80
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=58dfae6365666e26cb2d172dc437773120fc4e1a;p=firefly-linux-kernel-4.4.55.git

btrfs: replace simple_strtoull() with kstrtoull()

use the newer and more pleasant kstrtoull() to replace simple_strtoull(),
because simple_strtoull() is marked for obsoletion.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a21a4ac537b7..fba7a004e7e5 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1503,11 +1503,12 @@ static noinline int btrfs_ioctl_resize(struct file *file,
 	sizestr = vol_args->name;
 	devstr = strchr(sizestr, ':');
 	if (devstr) {
-		char *end;
 		sizestr = devstr + 1;
 		*devstr = '\0';
 		devstr = vol_args->name;
-		devid = simple_strtoull(devstr, &end, 10);
+		ret = kstrtoull(devstr, 10, &devid);
+		if (ret)
+			goto out_free;
 		if (!devid) {
 			ret = -EINVAL;
 			goto out_free;