Merge tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2…

…/linux

Pull omapdss fixes from Tomi Valkeinen:
 "Here are a few OMAPDSS fixes for the next -rc.  I'm sending these
  directly to you, and quite late, as the fbdev tree maintainer
  (Florian) has been busy with his work and hasn't had time to manage
  the fb patches."

* tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux:
  OMAPDSS: do not fail if dpll4_m4_ck is missing
  OMAPFB: Fix possible null pointer dereferencing
  OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs()
  omapdss: dss: Fix clocks on OMAP363x
  OMAPDSS: DSI: fix dsi_get_dsidev_from_id()

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,

drivers/video/omap2/dss/dss.c

@@ -697,11 +697,15 @@ 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;
@@ -805,10 +809,10 @@ static int __init dss_init_features(struct device *dev)
 
 	if (cpu_is_omap24xx())
 		src = &omap24xx_dss_feats;
-	else if (cpu_is_omap34xx())
-		src = &omap34xx_dss_feats;
 	else if (cpu_is_omap3630())
 		src = &omap3630_dss_feats;
+	else if (cpu_is_omap34xx())
+		src = &omap34xx_dss_feats;
 	else if (cpu_is_omap44xx())
 		src = &omap44xx_dss_feats;
 	else if (soc_is_omap54xx())

drivers/video/omap2/dss/hdmi.c

@@ -644,8 +644,10 @@ 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);

drivers/video/omap2/omapfb/omapfb-ioctl.c

@@ -787,7 +787,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 
 	case OMAPFB_WAITFORVSYNC:
 		DBG("ioctl WAITFORVSYNC\n");
-		if (!display && !display->output && !display->output->manager) {
+		if (!display || !display->output || !display->output->manager) {
 			r = -EINVAL;
 			break;
 		}