If the aprp_hook is not assigned back to NULL, it will still be called
after module exits. This is not wanted.
Reviewed-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: john@phrozen.org
Patchwork: https://patchwork.linux-mips.org/patch/6590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 
        for (i = 0; i < RTLX_CHANNELS; i++)
                device_destroy(mt_class, MKDEV(major, i));
+
        unregister_chrdev(major, RTLX_MODULE_NAME);
+
+       aprp_hook = NULL;
 }
 
 
        for (i = 0; i < RTLX_CHANNELS; i++)
                device_destroy(mt_class, MKDEV(major, i));
+
        unregister_chrdev(major, RTLX_MODULE_NAME);
+
+       aprp_hook = NULL;
 }