security.h: fix build failure

security.h: fix build failure

include/linux/security.h: In function 'security_ptrace_traceme':
include/linux/security.h:1760: error: 'parent' undeclared (first use in this function)

Signed-off-by: Alexander Beregalov <[e-mail]>
Tested-by: Ingo Molnar <[e-mail]>
Signed-off-by: James Morris <[e-mail]>

include/linux/security.h

···
 	return cap_ptrace_may_access(child, mode);
 }
 
-static inline int security_ptrace_traceme(struct task_struct *child)
+static inline int security_ptrace_traceme(struct task_struct *parent)
 {
 	return cap_ptrace_traceme(parent);
 }