3 files changed, 23 insertions, 8 deletions

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index d64ac38..bee9284 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -365,11 +365,20 @@ struct platform_device *dsi_get_dsidev_from_id(int module)
 	struct omap_dss_output *out;
 	enum omap_dss_output_id	id;
 
-	id = module == 0 ? OMAP_DSS_OUTPUT_DSI1 : OMAP_DSS_OUTPUT_DSI2;
+	switch (module) {
+	case 0:
+		id = OMAP_DSS_OUTPUT_DSI1;
+		break;
+	case 1:
+		id = OMAP_DSS_OUTPUT_DSI2;
+		break;
+	default:
+		return NULL;
+	}
 
 	out = omap_dss_get_output(id);
 
-	return out->pdev;
+	return out ? out->pdev : NULL;
 }
 
 static inline void dsi_write_reg(struct platform_device *dsidev,
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 363852a..602102c 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -695,11 +695,15 @@ static int dss_get_clocks(void)
 
 	dss.dss_clk = clk;
 
-	clk = clk_get(NULL, dss.feat->clk_name);
-	if (IS_ERR(clk)) {
-		DSSERR("Failed to get %s\n", dss.feat->clk_name);
-		r = PTR_ERR(clk);
-		goto err;
+	if (dss.feat->clk_name) {
+		clk = clk_get(NULL, dss.feat->clk_name);
+		if (IS_ERR(clk)) {
+			DSSERR("Failed to get %s\n", dss.feat->clk_name);
+			r = PTR_ERR(clk);
+			goto err;
+		}
+	} else {
+		clk = NULL;
 	}
 
 	dss.dpll4_m4_ck = clk;
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index adcc906..0d6d721 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -645,8 +645,10 @@ static void hdmi_dump_regs(struct seq_file *s)
 {
 	mutex_lock(&hdmi.lock);
 
-	if (hdmi_runtime_get())
+	if (hdmi_runtime_get()) {
+		mutex_unlock(&hdmi.lock);
 		return;
+	}
 
 	hdmi.ip_data.ops->dump_wrapper(&hdmi.ip_data, s);
 	hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s);