acassis commented on code in PR #17441:
URL: https://github.com/apache/nuttx/pull/17441#discussion_r2596519348


##########
drivers/can/can.c:
##########
@@ -518,7 +518,7 @@ static ssize_t can_read(FAR struct file *filep, FAR char 
*buffer,
 
   /* ret can be more than buflen due to roundup, so return at most buflen */
 
-  return ret ? MIN(ret, buflen) : -EMSGSIZE;
+  return ret ? MIN(ret, (int)buflen) : -EMSGSIZE;

Review Comment:
   @raiden00pl how we can use your new test framework to avoid this kind of 
regression? Is there some way we could run the "can test" and check the results?



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