sched: Fix kernel-doc function parameter name

Fix variable name in sched.c kernel-doc notation.

Fixes this DocBook warning:

 Warning(kernel/sched.c:2008): No description found for parameter
 'p' Warning(kernel/sched.c:2008): Excess function parameter 'k'
 description in 'kthread_bind'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
LKML-Reference: <4AF4B1BC.8020604@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched.c b/kernel/sched.c
index 28dd4f49..7d7d5fc 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1994,7 +1994,7 @@
 
 /**
  * kthread_bind - bind a just-created kthread to a cpu.
- * @k: thread created by kthread_create().
+ * @p: thread created by kthread_create().
  * @cpu: cpu (might not be online, must be possible) for @k to run on.
  *
  * Description: This function is equivalent to set_cpus_allowed(),