hw/core/loader: gunzip(): initialize z_stream

Coverity signals that variable as being used uninitialized. And really,
when work with external APIs that's better to zero out the structure,
where we set some fields by hand.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Maksim Davydov <davydov-max@yandex-team.ru>
Message-id: 20231017125941.810461-6-vsementsov@yandex-team.ru
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/core/loader.c b/hw/core/loader.c
index 4dd5a71fb79f1b8451d76029c66ca210f092290a..b7bb44b7f7cf98f3fdb1509861512705055f1561 100644 (file)
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -558,7 +558,7 @@ static void zfree(void *x, void *addr)
 
 ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, size_t srclen)
 {
-    z_stream s;
+    z_stream s = {};
     ssize_t dstbytes;
     int r, i, flags;