Uninitialized variable: r->m_num_bits

[rurban]

static analysis with cppcheck found this

miniz.c:2468:19: warning: Uninitialized variable: r->m_num_bits [uninitvar]
    num_bits = r->m_num_bits;
                  ^
miniz.c:2965:31: note: Calling function 'tinfl_decompress', 1st argument '&decomp' value is <Uninit>
    status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf, &src_buf_len, (mz_uint8 *)pOut_buf, (mz_uint8 *)pOut_buf, &out_buf_len, (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
                              ^
miniz.c:2455:55: note: Assuming condition is Assuming condition is false
    if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start))
                                                      ^
miniz.c:2468:19: note: Uninitialized variable: r->m_num_bits
    num_bits = r->m_num_bits;

Adding the uninit fields to tinfl_init fixes it.

--- miniz_tinfl.h
+++ miniz_tinfl.h
@@ -92,7 +92,7 @@ typedef enum {
     do                    \
     {                     \
-        (r)->m_state = 0; \
+        memset(r, 0, sizeof (tinfl_decompressor)); \
     }                     \
     MZ_MACRO_END
 #define tinfl_get_adler32(r) (r)->m_check_adler32