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 <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files 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);