From f6769968b5569f3d033c67e0bf53e2deec78a45c Mon Sep 17 00:00:00 2001 From: Afzal Mohammed Date: Mon, 31 Dec 2012 00:02:32 +0530 Subject: [PATCH 12/51] video: da8xx-fb: invoke platform callback safely Ensure that platform data is present before checking whether platform callback is present (the one used to control backlight). So far this was not an issue as driver was purely non-DT triggered, but now DT support has been added. Signed-off-by: Afzal Mohammed --- drivers/video/da8xx-fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-3.12.36-rt50-r4s2/drivers/video/da8xx-fb.c =================================================================== --- linux-3.12.36-rt50-r4s2.orig/drivers/video/da8xx-fb.c +++ linux-3.12.36-rt50-r4s2/drivers/video/da8xx-fb.c @@ -1409,7 +1409,7 @@ static int fb_probe(struct platform_devi par->dev = &device->dev; par->lcdc_clk = tmp_lcdc_clk; par->lcdc_clk_rate = clk_get_rate(par->lcdc_clk); - if (fb_pdata->panel_power_ctrl) { + if (fp_pdata && fb_pdata->panel_power_ctrl) { par->panel_power_ctrl = fb_pdata->panel_power_ctrl; par->panel_power_ctrl(1); }