fs: Fix grammar and spelling in propagate_umount()

Fix grammar and spelling in the propagate_umount() function.

Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20241204081218.12141-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

Author: Zhu Jun

fs/pnode.c

@@ -611,10 +611,10 @@ int propagate_umount(struct list_head *list)
 				continue;
 			} else if (child->mnt.mnt_flags & MNT_UMOUNT) {
 				/*
-				 * We have come accross an partially unmounted
-				 * mount in list that has not been visited yet.
-				 * Remember it has been visited and continue
-				 * about our merry way.
+				 * We have come across a partially unmounted
+				 * mount in a list that has not been visited
+				 * yet. Remember it has been visited and
+				 * continue about our merry way.
 				 */
 				list_add_tail(&child->mnt_umounting, &visited);
 				continue;