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-rw-r--r--src/output/OssOutputPlugin.cxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/output/OssOutputPlugin.cxx b/src/output/OssOutputPlugin.cxx
index 68f2a38aa..cdde6d562 100644
--- a/src/output/OssOutputPlugin.cxx
+++ b/src/output/OssOutputPlugin.cxx
@@ -727,6 +727,8 @@ oss_output_play(struct audio_output *ao, const void *chunk, size_t size,
OssOutput *od = (OssOutput *)ao;
ssize_t ret;
+ assert(size > 0);
+
/* reopen the device since it was closed by dropBufferedAudio */
if (od->fd < 0 && !oss_reopen(od, error))
return 0;
@@ -735,6 +737,8 @@ oss_output_play(struct audio_output *ao, const void *chunk, size_t size,
chunk = od->pcm_export->Export(chunk, size, size);
#endif
+ assert(size > 0);
+
while (true) {
ret = write(od->fd, chunk, size);
if (ret > 0) {