Fix some recently introduced errors

fs/smartfs/smartfs_smart.c

@@ -771,7 +771,7 @@ static ssize_t smartfs_write(FAR struct file *filep, const char *buffer,
           if (ret < 0)
             {
               ferr("ERROR: Error %d writing sector %d data\n", 
-                   et, sf->currsector);
+                   ret, sf->currsector);
               goto errout_with_semaphore;
             }
 

fs/vfs/fs_ioctl.c

@@ -76,7 +76,7 @@
 int file_ioctl(FAR struct file *filep, int req, unsigned long arg)
 {
   FAR struct inode *inode;
-  int ret;
+  int ret = OK;
 
   /* Is a driver registered? Does it support the ioctl method? */
 
@@ -93,7 +93,7 @@ int file_ioctl(FAR struct file *filep, int req, unsigned long arg)
         }
     }
 
-  return OK;
+  return ret;
 }
 #endif /* CONFIG_NFILE_DESCRIPTORS > 0 */