[PATCH] Btrfs: replace simple_strtoull() with kstrtoull() in btrfs_ioctl_resize()

[Jeff Liu]

simple_strtoull() is obsolete, use kstrtoull() instead.

Signed-off-by: Jie Liu <jeff....@oracle.com>
---
 fs/btrfs/ioctl.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 8fcf9a5..b147424 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1331,11 +1331,16 @@ static noinline int btrfs_ioctl_resize(struct 
btrfs_root *root,
        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) {
+                       pr_err("btrfs: resizer unable to parse device %s\n",
+                               devstr);
+                       ret = -EINVAL;
+                       goto out_free;
+               }
                printk(KERN_INFO "btrfs: resizing devid %llu\n",
                       (unsigned long long)devid);
        }
-- 
1.7.9.5
--
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