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()

4 files changed, 26 insertions, 11 deletions

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index d64ac3842884..bee92846cfab 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 2ab1c3e96553..5f6eea801b06 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/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())
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index a48a7dd75b33..8c9b8b3b7f77 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/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);
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 606b89f12351..d630b26a005c 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/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;
                 }