diff options
| -rw-r--r-- | drivers/md/md.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 5438834bf54d..bddecc01c333 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5502,7 +5502,7 @@ static int get_array_info(struct mddev *mddev, void __user *arg) static int get_bitmap_file(struct mddev *mddev, void __user * arg) { mdu_bitmap_file_t *file = NULL; /* too big for stack allocation */ - char *ptr, *buf = NULL; + char *ptr; int err = -ENOMEM; file = kmalloc(sizeof(*file), GFP_NOIO); @@ -5516,23 +5516,19 @@ static int get_bitmap_file(struct mddev *mddev, void __user * arg) goto copy_out; } - buf = kmalloc(sizeof(file->pathname), GFP_KERNEL); - if (!buf) - goto out; - ptr = d_path(&mddev->bitmap->storage.file->f_path, - buf, sizeof(file->pathname)); + file->pathname, sizeof(file->pathname)); if (IS_ERR(ptr)) goto out; - strcpy(file->pathname, ptr); + memmove(file->pathname, ptr, + sizeof(file->pathname)-(ptr-file->pathname)); copy_out: err = 0; if (copy_to_user(arg, file, sizeof(*file))) err = -EFAULT; out: - kfree(buf); kfree(file); return err; } |