center-3xx: Make serial write call block.

This call is executed from an event handler and was previously nonblocking,
but has no partial write handling. It sends a short packet so should be OK
to block, most likely the output buffer will be empty anyway.

diff --git a/src/hardware/center-3xx/protocol.c b/src/hardware/center-3xx/protocol.c
index 16b23bdac8642f70243f639a82c23b1c61856511..82fa19094f1093ff66ae91706c8889583ad4951b 100644 (file)
--- a/src/hardware/center-3xx/protocol.c
+++ b/src/hardware/center-3xx/protocol.c
@@ -31,7 +31,7 @@ static int center_send(struct sr_serial_dev_inst *serial, const char *cmd)
 {
        int ret;
 
-       if ((ret = serial_write(serial, cmd, strlen(cmd))) < 0) {
+       if ((ret = serial_write_blocking(serial, cmd, strlen(cmd))) < 0) {
                sr_err("Error sending '%s' command: %d.", cmd, ret);
                return SR_ERR;
        }