From 6de9edd5bde0cdfea12e9948690e53ec669c3018 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 3 Sep 2010 07:20:23 +0000 Subject: fbdev: sh_mobile_hdmi: implement locking The SH-Mobile HDMI driver runs in several contexts: ISR, delayed work-queue, task context, when called from the sh_mobile_lcdc framebuffer driver. This creates ample race possibilities. Even though most these races are purely theoretical, it is better to close them. To trace fb_info validity we install a notification callback in the HDMI driver, and the only way for it to get to driver internal data is by using struct sh_mobile_lcdc_chan, therefore it had to be extracted into a separate common header. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt --- include/video/sh_mobile_lcdc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/video') diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h index 19c69d788f3..daabae5817c 100644 --- a/include/video/sh_mobile_lcdc.h +++ b/include/video/sh_mobile_lcdc.h @@ -49,7 +49,9 @@ struct sh_mobile_lcdc_sys_bus_ops { unsigned long (*read_data)(void *handle); }; +struct module; struct sh_mobile_lcdc_board_cfg { + struct module *owner; void *board_data; int (*setup_sys)(void *board_data, void *sys_ops_handle, struct sh_mobile_lcdc_sys_bus_ops *sys_ops); -- cgit v1.2.3-70-g09d2