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authorPaul Mundt <lethal@linux-sh.org>2010-02-15 14:49:37 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-02-15 14:49:37 +0900
commit028c5d5d596651bce13d06737eb3707a7e99a30c (patch)
treee4e429858a19635ad2b5aa563bf1b4e39396d4e2 /drivers/dma
parent19f6b8b44e3f633d5d7d1ed68848b1eb89a1e800 (diff)
parent4b505db9c4c72dbd2a8e66b8d681640101325af6 (diff)
Merge branch 'sh/stable-updates'
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/coh901318.c2
-rw-r--r--drivers/dma/dmaengine.c1
-rw-r--r--drivers/dma/dmatest.c2
-rw-r--r--drivers/dma/ioat/dma_v2.c2
-rw-r--r--drivers/dma/ipu/ipu_idmac.c25
5 files changed, 10 insertions, 22 deletions
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index b5f2ee0f8e2..64a937262a4 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -613,8 +613,6 @@ static void dma_tasklet(unsigned long data)
cohd_fin->pending_irqs--;
cohc->completed = cohd_fin->desc.cookie;
- BUG_ON(cohc->nbr_active_done && cohd_fin == NULL);
-
if (cohc->nbr_active_done == 0)
return;
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 6f51a0a7a8b..e7a3230fb7d 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -826,6 +826,7 @@ void dma_async_device_unregister(struct dma_device *device)
chan->dev->chan = NULL;
mutex_unlock(&dma_list_mutex);
device_unregister(&chan->dev->device);
+ free_percpu(chan->local);
}
}
EXPORT_SYMBOL(dma_async_device_unregister);
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 8b905161fbf..948d563941c 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -467,7 +467,7 @@ err_srcs:
if (iterations > 0)
while (!kthread_should_stop()) {
- DECLARE_WAIT_QUEUE_HEAD(wait_dmatest_exit);
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait_dmatest_exit);
interruptible_sleep_on(&wait_dmatest_exit);
}
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 5f7a500e18d..5cc37afe2bc 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -249,7 +249,7 @@ int ioat2_quiesce(struct ioat_chan_common *chan, unsigned long tmo)
if (is_ioat_active(status) || is_ioat_idle(status))
ioat_suspend(chan);
while (is_ioat_active(status) || is_ioat_idle(status)) {
- if (end && time_after(jiffies, end)) {
+ if (tmo && time_after(jiffies, end)) {
err = -ETIMEDOUT;
break;
}
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 9a5bc1a7389..e80bae1673f 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -761,12 +761,10 @@ static void ipu_select_buffer(enum ipu_channel channel, int buffer_n)
* @buffer_n: buffer number to update.
* 0 or 1 are the only valid values.
* @phyaddr: buffer physical address.
- * @return: Returns 0 on success or negative error code on failure. This
- * function will fail if the buffer is set to ready.
*/
/* Called under spin_lock(_irqsave)(&ichan->lock) */
-static int ipu_update_channel_buffer(struct idmac_channel *ichan,
- int buffer_n, dma_addr_t phyaddr)
+static void ipu_update_channel_buffer(struct idmac_channel *ichan,
+ int buffer_n, dma_addr_t phyaddr)
{
enum ipu_channel channel = ichan->dma_chan.chan_id;
uint32_t reg;
@@ -806,8 +804,6 @@ static int ipu_update_channel_buffer(struct idmac_channel *ichan,
}
spin_unlock_irqrestore(&ipu_data.lock, flags);
-
- return 0;
}
/* Called under spin_lock_irqsave(&ichan->lock) */
@@ -816,7 +812,6 @@ static int ipu_submit_buffer(struct idmac_channel *ichan,
{
unsigned int chan_id = ichan->dma_chan.chan_id;
struct device *dev = &ichan->dma_chan.dev->device;
- int ret;
if (async_tx_test_ack(&desc->txd))
return -EINTR;
@@ -827,14 +822,7 @@ static int ipu_submit_buffer(struct idmac_channel *ichan,
* could make it conditional on status >= IPU_CHANNEL_ENABLED, but
* doing it again shouldn't hurt either.
*/
- ret = ipu_update_channel_buffer(ichan, buf_idx,
- sg_dma_address(sg));
-
- if (ret < 0) {
- dev_err(dev, "Updating sg %p on channel 0x%x buffer %d failed!\n",
- sg, chan_id, buf_idx);
- return ret;
- }
+ ipu_update_channel_buffer(ichan, buf_idx, sg_dma_address(sg));
ipu_select_buffer(chan_id, buf_idx);
dev_dbg(dev, "Updated sg %p on channel 0x%x buffer %d\n",
@@ -1379,10 +1367,11 @@ static irqreturn_t idmac_interrupt(int irq, void *dev_id)
if (likely(sgnew) &&
ipu_submit_buffer(ichan, descnew, sgnew, ichan->active_buffer) < 0) {
- callback = desc->txd.callback;
- callback_param = desc->txd.callback_param;
+ callback = descnew->txd.callback;
+ callback_param = descnew->txd.callback_param;
spin_unlock(&ichan->lock);
- callback(callback_param);
+ if (callback)
+ callback(callback_param);
spin_lock(&ichan->lock);
}