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Re: [RFC PATCH v2 3/3] tools/virtiofsd/fuse_lowlevel: Fix fuse_out_heade
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [RFC PATCH v2 3/3] tools/virtiofsd/fuse_lowlevel: Fix fuse_out_header::error value |
Date: |
Tue, 18 Feb 2020 09:51:37 +0000 |
User-agent: |
Mutt/1.13.3 (2020-01-12) |
* Philippe Mathieu-Daudé (address@hidden) wrote:
> On 2/17/20 9:06 PM, Dr. David Alan Gilbert wrote:
> > * Philippe Mathieu-Daudé (address@hidden) wrote:
> > > Fix warning reported by Clang static code analyzer:
> > >
> > > CC tools/virtiofsd/fuse_lowlevel.o
> > > tools/virtiofsd/fuse_lowlevel.c:195:9: warning: Value stored to
> > > 'error' is never read
> > > error = -ERANGE;
> > > ^ ~~~~~~~
> > >
> > > Fixes: 2de121f01e
> > > Reported-by: Clang Static Analyzer
> > > Reviewed-by: Ján Tomko <address@hidden>
> > > Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> >
> > Nice, this actually fixes 3db2876
>
> Good catch, so this fix can be applied to QEMU (while patch #1 needs
> backport from upstream libfuse), right?
I'll take all 3 into QEMU, libfuse can take it asynchronously.
Dave
> >
> > Reviewed-by: Dr. David Alan Gilbert <address@hidden>
>
> Thanks.
>
> >
> > > ---
> > > RFC because untested
> > > ---
> > > tools/virtiofsd/fuse_lowlevel.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/tools/virtiofsd/fuse_lowlevel.c
> > > b/tools/virtiofsd/fuse_lowlevel.c
> > > index 704c0369b2..2dd36ec03b 100644
> > > --- a/tools/virtiofsd/fuse_lowlevel.c
> > > +++ b/tools/virtiofsd/fuse_lowlevel.c
> > > @@ -192,7 +192,7 @@ int fuse_send_reply_iov_nofree(fuse_req_t req, int
> > > error, struct iovec *iov,
> > > if (error <= -1000 || error > 0) {
> > > fuse_log(FUSE_LOG_ERR, "fuse: bad error value: %i\n", error);
> > > - error = -ERANGE;
> > > + out.error = -ERANGE;
> > > }
> > > iov[0].iov_base = &out;
> > > --
> > > 2.21.1
> > >
> > --
> > Dr. David Alan Gilbert / address@hidden / Manchester, UK
> >
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK