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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-11-24 14:53:47 +0400
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-03-13 01:40:43 +0400
commit12ee2502c0503c484a7df052d356e39c40b02400 (patch)
treea1303e7105e30310cd1bf72c9f8dfdc626f0c65e /drivers/video/sh_mobile_hdmi.c
parent37c5dcc21ddaa9f946c4d691996bb3076598b813 (diff)
downloadlinux-12ee2502c0503c484a7df052d356e39c40b02400.tar.xz
fbdev: sh_mobile_hdmi: Don't access LCDC channel in notifier callback
Instead of relying on info->par being a pointer to an LCDC channel, cast the notifier block pointer to an sh_hdmi pointer. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/video/sh_mobile_hdmi.c')
-rw-r--r--drivers/video/sh_mobile_hdmi.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 647ba984f00f..a77bbc3e9e13 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -225,6 +225,8 @@ struct sh_hdmi {
struct notifier_block notifier;
};
+#define notifier_to_hdmi(n) container_of(n, struct sh_hdmi, notifier)
+
static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg)
{
iowrite8(data, hdmi->base + reg);
@@ -1204,11 +1206,9 @@ static int sh_hdmi_notify(struct notifier_block *nb,
{
struct fb_event *event = data;
struct fb_info *info = event->info;
- struct sh_mobile_lcdc_chan *ch = info->par;
- struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg;
- struct sh_hdmi *hdmi = board_cfg->board_data;
+ struct sh_hdmi *hdmi = notifier_to_hdmi(nb);
- if (!hdmi || nb != &hdmi->notifier || hdmi->info != info)
+ if (hdmi->info != info)
return NOTIFY_DONE;
switch(action) {