[Xen-devel] [PATCH 06 of 18] tools/blktap2: fix build errors caused by Werror in vhd_journal_write_entry

[Olaf Hering <olaf@xxxxxxxxx>]

# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1333397533 -7200
# Node ID 8d134408ddf233c6fe3a452b9b9f0780f91170e6
# Parent  cbdba2284f36dba539b7f5a0cded571c96f2bc4c
tools/blktap2: fix build errors caused by Werror in vhd_journal_write_entry

-O2 -Wall -Werror triggers these warnings:

libvhd-journal.c: In function 'vhd_journal_write_entry':
libvhd-journal.c:335: warning: statement with no effect

Really return the error from vhd_journal_write() to caller.

v2:
 - simplify the patch by just adding the missing return statement

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>

diff -r cbdba2284f36 -r 8d134408ddf2 tools/blktap2/vhd/lib/libvhd-journal.c
--- a/tools/blktap2/vhd/lib/libvhd-journal.c
+++ b/tools/blktap2/vhd/lib/libvhd-journal.c
@@ -332,7 +332,7 @@ vhd_journal_write_entry(vhd_journal_t *j
 
        err = vhd_journal_write(j, &e, sizeof(vhd_journal_entry_t));
        if (err)
-               err;
+               return err;
 
        return 0;
 }

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