avformat/xwma: Use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/xwma.c

@@ -172,7 +172,7 @@ static int xwma_read_header(AVFormatContext *s)
             /* Allocate some temporary storage to keep the dpds data around.
              * for processing later on.
              */
-            dpds_table = av_malloc(dpds_table_size * sizeof(uint32_t));
+            dpds_table = av_malloc_array(dpds_table_size, sizeof(uint32_t));
             if (!dpds_table) {
                 return AVERROR(ENOMEM);
             }