diff options
| author | Zev Weiss <zev@bewilderbeest.net> | 2018-04-14 01:16:58 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-04-15 23:36:26 -0400 |
| commit | 22762711479959754e005f5bb8e6abc37bf9e0ba (patch) | |
| tree | 5d68bdb49a6908d061fe46a1c3c084708a35d286 /fs/read_write.c | |
| parent | 60cc43fc888428bb2f18f08997432d426a243338 (diff) | |
| download | lwn-22762711479959754e005f5bb8e6abc37bf9e0ba.tar.gz lwn-22762711479959754e005f5bb8e6abc37bf9e0ba.zip | |
fs: avoid fdput() after failed fdget() in vfs_dedupe_file_range()
It's a fairly inconsequential bug, since fdput() won't actually try to
fput() the file due to fd.flags (and thus FDPUT_FPUT) being zero in
the failure case, but most other vfs code takes steps to avoid this.
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/read_write.c')
| -rw-r--r-- | fs/read_write.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index c4eabbfc90df..e83bd9744b5d 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -2023,7 +2023,7 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same) ret = mnt_want_write_file(dst_file); if (ret) { info->status = ret; - goto next_loop; + goto next_fdput; } dst_off = info->dest_offset; @@ -2058,9 +2058,9 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same) next_file: mnt_drop_write_file(dst_file); -next_loop: +next_fdput: fdput(dst_fd); - +next_loop: if (fatal_signal_pending(current)) goto out; } |