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fbdev: sh_mobile_hdmi: Don't access LCDC channel in notifier callback

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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>
This commit is contained in:
Laurent Pinchart 2011-11-24 11:53:47 +01:00
parent 37c5dcc21d
commit 12ee2502c0
1 changed files with 4 additions and 4 deletions
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8
drivers/video/sh_mobile_hdmi.c
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@ -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) {