3 files changed, 11 insertions, 3 deletions

diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 72d34a23a2ec..2db5580048d8 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -21,6 +21,7 @@
 #include <linux/clk.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
+#include <linux/cpufreq.h>
 
 #include <asm/io.h>
 
@@ -134,9 +135,17 @@ void clk_disable(struct clk *clk)
                 return;
 
         spin_lock_irqsave(&clockfw_lock, flags);
-        BUG_ON(clk->usecount == 0);
+        if (clk->usecount == 0) {
+                printk(KERN_ERR "Trying disable clock %s with 0 usecount\n",
+                       clk->name);
+                WARN_ON(1);
+                goto out;
+        }
+
         if (arch_clock->clk_disable)
                 arch_clock->clk_disable(clk);
+
+out:
         spin_unlock_irqrestore(&clockfw_lock, flags);
 }
 EXPORT_SYMBOL(clk_disable);
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 793740686be2..c00eda588cd8 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -604,6 +604,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
         chan->data = data;
 #ifndef CONFIG_ARCH_OMAP1
         chan->chain_id = -1;
+        chan->next_linked_ch = -1;
 #endif
         chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
 
@@ -1087,7 +1088,6 @@ int omap_request_dma_chain(int dev_id, const char *dev_name,
                         printk(KERN_ERR "omap_dma: Request failed %d\n", err);
                         return err;
                 }
-                dma_chan[channels[i]].next_linked_ch = -1;
                 dma_chan[channels[i]].prev_linked_ch = -1;
                 dma_chan[channels[i]].state = DMA_CH_NOTSTARTED;
 
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 1945ddfec18d..6f33f58bca45 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -355,7 +355,6 @@ static int omap_mbox_init(struct omap_mbox *mbox)
                         "failed to register mailbox interrupt:%d\n", ret);
                 goto fail_request_irq;
         }
-        enable_mbox_irq(mbox, IRQ_RX);
 
         mq = mbox_queue_alloc(mbox, mbox_txq_fn, mbox_tx_work);
         if (!mq) {