vfs: writev should return the partial write size

Signed-off-by: 丁欣童 <dingxintong@xiaomi.com> Change-Id: Id7f161fa51a9ad66dad265cab125deb3323e6602
2026-06-06 00:14:22 +08:00 · 2021-08-25 19:11:42 +08:00
parent 95db8bb14f
commit 5738f26938
1 changed files with 1 additions and 1 deletions
@@ -123,7 +123,7 @@ ssize_t writev(int fildes, FAR const struct iovec *iov, int iovcnt)
                      set_errno(save);
                    }

-                  return ERROR;
+                  return ntotal ? ntotal : ERROR;
                }

              /* Update pointers and counts in order to handle partial