dreamsourcelab-dslogic: avoid division by zero

Do not align to block_size when its value is zero.

This was reported by clang's scan-build.

diff --git a/src/hardware/dreamsourcelab-dslogic/protocol.c b/src/hardware/dreamsourcelab-dslogic/protocol.c
index 90b773d9cf970fe34d48193cea23de0792d046f5..863b4e3bac6f9a7ba88a6f25d768440dcc935c91 100644 (file)
--- a/src/hardware/dreamsourcelab-dslogic/protocol.c
+++ b/src/hardware/dreamsourcelab-dslogic/protocol.c
@@ -914,6 +914,8 @@ static size_t get_buffer_size(const struct sr_dev_inst *sdi)
         */
        const size_t block_size = enabled_channel_count(sdi) * 512;
        const size_t s = 10 * to_bytes_per_ms(sdi);
+       if (!block_size)
+               return s;
        return ((s + block_size - 1) / block_size) * block_size;
 }