From 9331fecc10d1409b8f63cbb3cc2365596255d672 Mon Sep 17 00:00:00 2001
From: Mark Adler <fork@madler.net>
Date: Thu, 6 Oct 2022 12:57:31 -0700
Subject: [PATCH] Remove redundant check in gz_look().

---
 gzread.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/gzread.c b/gzread.c
index 884c9bf..dd77381 100644
--- a/gzread.c
+++ b/gzread.c
@@ -157,11 +157,9 @@ local int gz_look(state)
        the output buffer is larger than the input buffer, which also assures
        space for gzungetc() */
     state->x.next = state->out;
-    if (strm->avail_in) {
-        memcpy(state->x.next, strm->next_in, strm->avail_in);
-        state->x.have = strm->avail_in;
-        strm->avail_in = 0;
-    }
+    memcpy(state->x.next, strm->next_in, strm->avail_in);
+    state->x.have = strm->avail_in;
+    strm->avail_in = 0;
     state->how = COPY;
     state->direct = 1;
     return 0;