The correct english is "an mm_struct" which is used everywhere else
in the kernel.

Signed-off-by: Joey Pabalinas <joeypabalinas@gmail.com>
---
 kernel/fork.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index af673856499dcaa35e..9a783cd46d097a2d68 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1397,18 +1397,18 @@ static int wait_for_vfork_done(struct task_struct *child,
 	put_task_struct(child);
 	return killed;
 }
 
 /* Please note the differences between mmput and mm_release.
- * mmput is called whenever we stop holding onto a mm_struct,
+ * mmput is called whenever we stop holding onto an mm_struct,
  * error success whatever.
  *
- * mm_release is called after a mm_struct has been removed
+ * mm_release is called after an mm_struct has been removed
  * from the current process.
  *
  * This difference is important for error handling, when we
- * only half set up a mm_struct for a new process and need to restore
+ * only half set up an mm_struct for a new process and need to restore
  * the old one.  Because we mmput the new mm_struct before
  * restoring the old one. . .
  * Eric Biederman 10 January 1998
  */
 static void mm_release(struct task_struct *tsk, struct mm_struct *mm)
-- 
Cheers,
Joey Pabalinas