modified LZ4_initStreamHC() to look like LZ4_initStream()

it is now a pure initializer, for statically allocated states.
It can initialize any memory area, and because of this, requires size.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/lz4.c b/lib/lz4.c
index 5fbc7c7..34587ce 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -1299,6 +1299,7 @@ static size_t LZ4_stream_t_alignment(void)
 LZ4_stream_t* LZ4_initStream (void* buffer, size_t size)
 {
     DEBUGLOG(5, "LZ4_initStream");
+    if (buffer == NULL) return NULL;
     if (size < sizeof(LZ4_stream_t)) return NULL;
 #ifndef _MSC_VER  /* for some reason, Visual fails the aligment test on 32-bit x86 :
                      it reports an aligment of 8-bytes,