Commit 09e65ed2 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  drivers/dma: Correct NULL test
  async-tx: fix buffer submission error handling in ipu_idma.c
  dmaengine: correct onstack wait_queue_head declaration
  ioat: fix infinite timeout checking in ioat2_quiesce
  dmaengine: fix memleak in dma_async_device_unregister
parents 9883b83d 734c2992
......@@ -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;
......
......@@ -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);
......
......@@ -467,7 +467,7 @@ static int dmatest_func(void *data)
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);
}
......
......@@ -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;
}
......
......@@ -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);
}
......
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