fstrace: only declare 'rval' when it is used

... to avoid compiler warnings about unused variables.

Found by clang on FreeBSD 10.0.

Reviewed-on: http://gerrit.openafs.org/10822
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Perry Ruiter <pruiter@sinenomine.net>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 63291be2216762dd89072f41c9a016608b736ceb)

Change-Id: Ib5d7e14d6077ec2377180b9308d99f49ff79cccc
Reviewed-on: http://gerrit.openafs.org/11777
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>

diff --git a/src/venus/fstrace.c b/src/venus/fstrace.c
index d5a54cbdcc6259e20e7c3a09316bd603cc5cda7b..1d89d0f17918299f9688a8beaf25d5cf62d9b04b 100644 (file)
--- a/src/venus/fstrace.c
+++ b/src/venus/fstrace.c
@@ -1117,7 +1117,10 @@ int
 afs_syscall(long call, long parm0, long parm1, long parm2, long parm3,
            long parm4, long parm5, long parm6)
 {
-    int code, rval;
+    int code;
+#if defined(AFS_DARWIN80_ENV) || defined(AFS_LINUX20_ENV)
+    int rval;
+#endif
 #ifdef AFS_LINUX20_ENV
 #if defined AFS_LINUX_64BIT_KERNEL
     long long eparm[4];