[GitHub] [incubator-nuttx] gustavonihei commented on a change in pull request #5077: driver/rwbuffer: Fix the compiler warning

[GitBox <gi...@apache.org>]

gustavonihei commented on a change in pull request #5077:
URL: https://github.com/apache/incubator-nuttx/pull/5077#discussion_r775273000



##########
File path: drivers/rwbuffer.c
##########
@@ -839,11 +839,11 @@ int rwb_initialize(FAR struct rwbuffer_s *rwb)
       rwb->wrbuffer = kmm_malloc(allocsize);
       if (!rwb->wrbuffer)
         {
-          ferr("Write buffer kmm_malloc(%d) failed\n", allocsize);
+          ferr("Write buffer kmm_malloc(%"PRId32") failed\n", allocsize);

Review comment:
       ```suggestion
             ferr("Write buffer kmm_malloc(%" PRId32 ") failed\n", allocsize);
   ```
   nit: the string operands of the concatenation are usually separated by whitespaces. 




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