szafonimateusz-mi commented on code in PR #17126:
URL: https://github.com/apache/nuttx/pull/17126#discussion_r2390998788


##########
fs/mmap/fs_mmap.c:
##########
@@ -279,10 +279,9 @@ FAR void *mmap(FAR void *start, size_t length, int prot, 
int flags,
   FAR void *mapped = NULL;
   int ret;
 
-  if (fd != -1 && file_get(fd, &filep) < 0)
+  if (fd != -1 && (ret = file_get(fd, &filep)) < 0)

Review Comment:
   -1 is correct here according to the standard. This is special case used for 
MAP_ANONYMOUS



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