->getprocattr(): attribute name is const char *, TYVM...

cast of ->d_name.name to char * is completely wrong - nothing is
allowed to modify its contents.

Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

security/selinux/hooks.c

@@ -6327,7 +6327,7 @@ static void selinux_d_instantiate(struct dentry *dentry, struct inode *inode)
 }
 
 static int selinux_getprocattr(struct task_struct *p,
-			       char *name, char **value)
+			       const char *name, char **value)
 {
 	const struct task_security_struct *__tsec;
 	u32 sid;