mm/vmalloc.c: fix the comment of find_vm_area

Fix the comment of find_vm_area() and get_vm_area()
Signed-off-by: Hui Su <sh_def@163.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200927153034.GA199877@rlkSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/vmalloc.c

@@ -2133,7 +2133,7 @@ struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
  * It is up to the caller to do all required locking to keep the returned
  * pointer valid.
  *
- * Return: pointer to the found area or %NULL on faulure
+ * Return: the area descriptor on success or %NULL on failure.
  */
 struct vm_struct *find_vm_area(const void *addr)
 {
@@ -2154,7 +2154,7 @@ struct vm_struct *find_vm_area(const void *addr)
  * This function returns the found VM area, but using it is NOT safe
  * on SMP machines, except for its size or flags.
  *
- * Return: pointer to the found area or %NULL on faulure
+ * Return: the area descriptor on success or %NULL on failure.
  */
 struct vm_struct *remove_vm_area(const void *addr)
 {