avresample: Make sure the even check does not overflow

CC: libav-stable@libav.org Bug-Id: CID 732225

avresample: Make sure the even check does not overflow
CC: libav-stable@libav.org Bug-Id: CID 732225
963f7614 · Luca Barbato · Vittorio Giovara · 088eca28 · 963f7614
Commit 963f7614 authored Oct 15, 2014 by Luca Barbato Committed by Vittorio Giovara Oct 18, 2014
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audio_mix_matrix.c libavresample/audio_mix_matrix.c +1 -1

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--- a/libavresample/audio_mix_matrix.c
+++ b/libavresample/audio_mix_matrix.c
@@ -60,7 +60,7 @@

 static av_always_inline int even(uint64_t layout)
 {
-    return (!layout || (layout & (layout - 1)));
+    return (!layout || !!(layout & (layout - 1)));
 }

 static int sane_layout(uint64_t layout)