9p: fix ignored return value in v9fs_dir_release

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commit eee4a119e9 upstream.

retval from filemap_fdatawrite was immediately overwritten by the
following p9_fid_put: preserve any error in fdatawrite if there
was any first.

This fixes the following scan-build warning:
fs/9p/vfs_dir.c:220:4: warning: Value stored to 'retval' is never read [deadcode.DeadStores]
                        retval = filemap_fdatawrite(inode->i_mapping);
                        ^        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 89c58cb395 ("fs/9p: fix error reporting in v9fs_dir_release")
Cc: stable@vger.kernel.org
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dominique Martinet 2023-05-03 16:49:25 +09:00 • committed by Greg Kroah-Hartman

parent c9d7e61044

commit f1e24c44ab

1 changed files with 3 additions and 2 deletions

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fs/9p/vfs_dir.c

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