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matroska: catch failure to map buffer

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Avoids dereferencing NULL.

Coverity 1139712
This commit is contained in:
Vincent Penquerc'h 2014-05-02 11:20:33 +01:00
parent 94720fd3a1
commit f5a9f5e221
1 changed files with 7 additions and 2 deletions
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9
gst/matroska/ebml-write.c
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@ -427,7 +427,10 @@ gst_ebml_write_element_push (GstEbmlWrite * ebml, GstBuffer * buf,
gst_buffer_map (buf, &map, GST_MAP_READ); gst_buffer_map (buf, &map, GST_MAP_READ);
buf_data = map.data; buf_data = map.data;
} }
if (!gst_byte_writer_put_data (ebml->streamheader, buf_data, data_size)) if (!buf_data)
GST_WARNING ("Failed to map buffer");
else if (!gst_byte_writer_put_data (ebml->streamheader, buf_data,
data_size))
GST_WARNING ("Error writing data to streamheader"); GST_WARNING ("Error writing data to streamheader");
} }
if (ebml->cache) { if (ebml->cache) {
@ -435,7 +438,9 @@ gst_ebml_write_element_push (GstEbmlWrite * ebml, GstBuffer * buf,
gst_buffer_map (buf, &map, GST_MAP_READ); gst_buffer_map (buf, &map, GST_MAP_READ);
buf_data = map.data; buf_data = map.data;
} }
if (!gst_byte_writer_put_data (ebml->cache, buf_data, data_size)) if (!buf_data)
GST_WARNING ("Failed to map buffer");
else if (!gst_byte_writer_put_data (ebml->cache, buf_data, data_size))
GST_WARNING ("Error writing data to cache"); GST_WARNING ("Error writing data to cache");
if (map.data) if (map.data)
gst_buffer_unmap (buf, &map); gst_buffer_unmap (buf, &map);