logging: rtt: Fix RTT message dropped warning not displayed

Fix data_out_block_mode() to return the data correctly sent to RTT. Before this fixes, it was always returning `lenght`, even in situation where data have been dropped. This was leading to not having the dropped messages warning displayed. Fixes zephyrproject-rtos#21514 Signed-off-by: Xavier Chapron <[email protected]>
XavierChapron · Jul 7, 2020 · 71d84ef · 71d84ef
1 parent 85acfd2
commit 71d84ef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/subsys/logging/log_backend_rtt.c b/subsys/logging/log_backend_rtt.c
@@ -222,7 +222,7 @@ static int data_out_block_mode(uint8_t *data, size_t length, void *ctx)
 		}
 	} while ((ret == 0) && host_present);
 
-	return ((ret == 0) && host_present) ? 0 : length;
+	return ret ? length : 0;
 }
 
 LOG_OUTPUT_DEFINE(log_output, IS_ENABLED(CONFIG_LOG_BACKEND_RTT_MODE_BLOCK) ?