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>
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@ -1503,11 +1503,12 @@ static noinline int btrfs_ioctl_resize(struct file *file,
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sizestr = vol_args->name;
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devstr = strchr(sizestr, ':');
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if (devstr) {
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char *end;
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sizestr = devstr + 1;
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*devstr = '\0';
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devstr = vol_args->name;
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devid = simple_strtoull(devstr, &end, 10);
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ret = kstrtoull(devstr, 10, &devid);
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if (ret)
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goto out_free;
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if (!devid) {
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ret = -EINVAL;
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goto out_free;
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