Re: [bug report] fs: Restrict lock_two_nondirectories() to non-directory inodes

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On Tue, Jun 06, 2023 at 11:56:25AM +0200, Jan Kara wrote:
> On Tue 06-06-23 11:32:53, Dan Carpenter wrote:
> > Hello Jan Kara,
> > 
> > This is a semi-automatic email about new static checker warnings.
> > 
> > The patch afb4adc7c3ef: "fs: Restrict lock_two_nondirectories() to
> > non-directory inodes" from Jun 1, 2023, leads to the following Smatch
> > complaint:
> > 
> >     fs/inode.c:1174 unlock_two_nondirectories()
> >     warn: variable dereferenced before check 'inode1' (see line 1172)
> > 
> >     fs/inode.c:1176 unlock_two_nondirectories()
> >     warn: variable dereferenced before check 'inode2' (see line 1173)
> 
> Indeed, thanks for spotting this! Luckily there are currently no in-tree
> users passing NULL. Attached patch fixes this. Christian, can you please

Thanks for the fixup!

> add this to your branch or squash it into the fixed commit? Thanks!


Of course. I've squashed the fix into the original patch.

---

Applied to the vfs.rename.locking branch of the vfs/vfs.git tree.
Patches in the vfs.rename.locking branch should appear in linux-next soon.



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