On 01/08/2013 12:03 AM, David Sterba wrote:
> On Sun, Jan 06, 2013 at 11:53:41AM +0800, Jeff Liu wrote:
>> - devid = simple_strtoull(devstr, &end, 10);
>> + ret = kstrtoull(devstr, 10, &devid);
>> + if (ret) {
>> + pr_err("btrfs: resizer unable to parse device %s\n",
>> + devstr);
>
> Code looks ok, I would prefer the message error text to say:
>
> pr_err("btrfs: resize unable to parse device id %s\n",
> devstr);
>
> but that's maybe just me :)
Thanks for the review, yours is better :)
The revised patch was shown as following:
simple_strtoull() is obsolete, use kstrtoull() instead.
Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx>
Cc: David Sterba <dsterba@xxxxxxx>
---
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..d9045eb 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 id %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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