diff options
| -rw-r--r-- | fs/pstore/platform.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 96fbff7b87c8..1b6e0ff6bff5 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -653,19 +653,16 @@ static int pstore_write_user_compat(struct pstore_record *record, if (record->buf) return -EINVAL; - record->buf = kmalloc(record->size, GFP_KERNEL); - if (!record->buf) - return -ENOMEM; - - if (unlikely(copy_from_user(record->buf, buf, record->size))) { - ret = -EFAULT; + record->buf = memdup_user(buf, record->size); + if (unlikely(IS_ERR(record->buf))) { + ret = PTR_ERR(record->buf); goto out; } ret = record->psi->write(record); -out: kfree(record->buf); +out: record->buf = NULL; return unlikely(ret < 0) ? ret : record->size; |