exr: check return value

CC: libav-stable@libav.org Bug-Id: CID 1198259
11 years ago · 3a6ddfb874
parent e4cb6abb2f
commit 3a6ddfb874
1 changed files with 3 additions and 2 deletions
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@ -311,8 +311,9 @@ static int huf_unpack_enc_table(GetByteContext *gb,
                                int32_t im, int32_t iM, uint64_t *hcode)
 {
    GetBitContext gbit;
-
-    init_get_bits8(&gbit, gb->buffer, bytestream2_get_bytes_left(gb));
+    int ret = init_get_bits8(&gbit, gb->buffer, bytestream2_get_bytes_left(gb));
+    if (ret < 0)
+        return ret;

    for (; im <= iM; im++) {
        uint64_t l = hcode[im] = get_bits(&gbit, 6);