avcodec/scpr: avoid using uninitialized value

Fixes #7872.

diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c
index e5d7d13cf056e0d712cf31abded4457f616d96fc..ce614ffacff9c2f51408209e0f0075ba64cfaf6e 100644 (file)
--- 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;