pgsql: Remove useless LZ4 system call on failure when writing file head

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Remove useless LZ4 system call on failure when writing file head
Date: 2021-11-24 11:14:08
Message-ID: E1mpqE4-0005hz-9W@gemulon.postgresql.org
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Remove useless LZ4 system call on failure when writing file header

If an error occurs when writing the LZ4 file header, LZ4F_compressEnd()
was called in the error code path of write(), followed by
LZ4F_freeCompressionContext() to finish the cleanup. The code as-is was
not broken, but the LZ4F_compressEnd() proves to not be necessary as
there are no contents to flush at this stage, so remove it.

Per gripe from Jeevan Ladhe and Robert Haas.

Discussion: https://postgr.es/m/CAOgcT0PE33wbD7giAT1OSkNJt=p-vu8huq++qh=ny9O=SCP5aA@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/f79962d8264b8d205ce45a8aa11d1b37f9592a81

Modified Files
--------------
src/bin/pg_basebackup/walmethods.c | 1 -
1 file changed, 1 deletion(-)

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