From f5a1a1f8e41e93584935d4ae62a84280dcdbe778 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 4 Jun 2015 13:06:37 +0300 Subject: [PATCH] OMAPDSS: fix dss_init_ports error handling The return value of dss_init_ports() is not handled at all, causing crashes later if the call failed. This patch adds the error handling, and we also move the call to a slightly earlier place to make bailing out easier. Signed-off-by: Tomi Valkeinen Acked-by: Laurent Pinchart --- drivers/video/fbdev/omap2/dss/dss.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/omap2/dss/dss.c b/drivers/video/fbdev/omap2/dss/dss.c index 1ce47441efe3..28e6ff053b47 100644 --- a/drivers/video/fbdev/omap2/dss/dss.c +++ b/drivers/video/fbdev/omap2/dss/dss.c @@ -1125,6 +1125,10 @@ static int __init omap_dsshw_probe(struct platform_device *pdev) if (r) goto err_pll_init; + r = dss_init_ports(pdev); + if (r) + goto err_init_ports; + pm_runtime_enable(&pdev->dev); r = dss_runtime_get(); @@ -1149,8 +1153,6 @@ static int __init omap_dsshw_probe(struct platform_device *pdev) dss.lcd_clk_source[0] = OMAP_DSS_CLK_SRC_FCK; dss.lcd_clk_source[1] = OMAP_DSS_CLK_SRC_FCK; - dss_init_ports(pdev); - rev = dss_read_reg(DSS_REVISION); printk(KERN_INFO "OMAP DSS rev %d.%d\n", FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); @@ -1167,7 +1169,8 @@ static int __init omap_dsshw_probe(struct platform_device *pdev) err_runtime_get: pm_runtime_disable(&pdev->dev); - + dss_uninit_ports(pdev); +err_init_ports: if (dss.video1_pll) dss_video_pll_uninit(dss.video1_pll);