avcodec/scpr: avoid using uninitialized value

Fixes #7872.

avcodec/scpr: avoid using uninitialized value
Fixes #7872.
ea80af65 · Paul B Mahol · 5840a7f8 · ea80af65
Commit ea80af65 authored Apr 28, 2019 by Paul B Mahol
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scpr.c libavcodec/scpr.c +4 -1

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--- a/libavcodec/scpr.c
+++ b/libavcodec/scpr.c
@@ -382,8 +382,11 @@ static int decompress_p(AVCodecContext *avctx,

    ret  = decode_value(s, s->range_model, 256, 1, &min);
    ret |= decode_value(s, s->range_model, 256, 1, &temp);
+    if (ret < 0)
+        return ret;
+
    min += temp << 8;
-    ret |= decode_value(s, s->range_model, 256, 1, &max);
+    ret  = decode_value(s, s->range_model, 256, 1, &max);
    ret |= decode_value(s, s->range_model, 256, 1, &temp);
    if (ret < 0)
        return ret;