[GEDI] [PATCH v3 18/25] block: Fix error_append_hint usage

[Eric Blake]

On 9/24/19 3:08 PM, Vladimir Sementsov-Ogievskiy wrote:
> If we want append hint to errp, we must use ERRP_FUNCTION_BEGIN macro.
> Otherwise hint will not be appended in case of errp == &fatal_err
> (program will exit before error_append_hint() call). Fix such cases.
> 
> This commit (together with its neighbors) was generated by
> 
> git grep -l 'error_append_hint(errp' | while read f; do \
> spatch --sp-file scripts/coccinelle/fix-error_append_hint-usage.cocci \
> --in-place $f; done
> 
> and then
> 
> ./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)"
> 
> (auto-msg was a file with this commit message)
> 

Your automation is cool!

> Still, for backporting it may be more comfortable to use only the first
> command and then do one huge commit.
> 
> Reported-by: Greg Kurz <groug at kaod.org>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov at virtuozzo.com>
> ---
>  block/backup.c       | 1 +
>  block/dirty-bitmap.c | 1 +
>  block/file-posix.c   | 3 +++
>  block/gluster.c      | 2 ++
>  block/qcow.c         | 1 +
>  block/qcow2.c        | 1 +
>  block/vhdx-log.c     | 1 +
>  block/vpc.c          | 1 +
>  8 files changed, 11 insertions(+)

$ git grep -p 'error_append_hint(errp' block/ | grep '\.c=' | wc -l

produces 11 hits, very nicely matching up with your patch.

Reviewed-by: Eric Blake <eblake at redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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