dovecot-2.2: Compiler warning fix

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.2/rev/9bda1b81c16c
changeset: 14953:9bda1b81c16c
user:      Timo Sirainen <tss at iki.fi>
date:      Thu Aug 23 15:29:43 2012 +0300
description:
Compiler warning fix

diffstat:

 src/lib/istream-concat.c |  4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diffs (14 lines):

diff -r b966759dd48c -r 9bda1b81c16c src/lib/istream-concat.c
--- a/src/lib/istream-concat.c	Thu Aug 23 11:54:46 2012 +0300
+++ b/src/lib/istream-concat.c	Thu Aug 23 15:29:43 2012 +0300
@@ -119,7 +119,9 @@
 	cur_data_pos = stream->pos - (stream->skip + cstream->prev_stream_left);
 
 	data = i_stream_get_data(cstream->cur_input, &data_size);
-	if (data_size <= cur_data_pos) {
+	if (data_size <= cur_data_pos)
+		ret = 0;
+	else {
 		/* need to read more */
 		i_assert(cur_data_pos == data_size);
 		ret = i_stream_read(cstream->cur_input);