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path: root/drivers/dma/fsldma.c
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Diffstat (limited to 'drivers/dma/fsldma.c')
-rw-r--r--drivers/dma/fsldma.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 054eabffc185..c0059ca58340 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -366,7 +366,8 @@ static struct fsl_desc_sw *fsl_dma_alloc_descriptor(
*
* Return - The number of descriptors allocated.
*/
-static int fsl_dma_alloc_chan_resources(struct dma_chan *chan)
+static int fsl_dma_alloc_chan_resources(struct dma_chan *chan,
+ struct dma_client *client)
{
struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
LIST_HEAD(tmp_list);
@@ -809,8 +810,7 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
if (!src) {
dev_err(fsl_chan->dev,
"selftest: Cannot alloc memory for test!\n");
- err = -ENOMEM;
- goto out;
+ return -ENOMEM;
}
dest = src + test_size;
@@ -820,7 +820,7 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
chan = &fsl_chan->common;
- if (fsl_dma_alloc_chan_resources(chan) < 1) {
+ if (fsl_dma_alloc_chan_resources(chan, NULL) < 1) {
dev_err(fsl_chan->dev,
"selftest: Cannot alloc resources for DMA\n");
err = -ENODEV;
@@ -842,13 +842,13 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
if (fsl_dma_is_complete(chan, cookie, NULL, NULL) != DMA_SUCCESS) {
dev_err(fsl_chan->dev, "selftest: Time out!\n");
err = -ENODEV;
- goto out;
+ goto free_resources;
}
/* Test free and re-alloc channel resources */
fsl_dma_free_chan_resources(chan);
- if (fsl_dma_alloc_chan_resources(chan) < 1) {
+ if (fsl_dma_alloc_chan_resources(chan, NULL) < 1) {
dev_err(fsl_chan->dev,
"selftest: Cannot alloc resources for DMA\n");
err = -ENODEV;
@@ -927,8 +927,7 @@ static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
if (!new_fsl_chan) {
dev_err(&dev->dev, "No free memory for allocating "
"dma channels!\n");
- err = -ENOMEM;
- goto err;
+ return -ENOMEM;
}
/* get dma channel register base */
@@ -936,7 +935,7 @@ static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
if (err) {
dev_err(&dev->dev, "Can't get %s property 'reg'\n",
dev->node->full_name);
- goto err;
+ goto err_no_reg;
}
new_fsl_chan->feature = *(u32 *)match->data;
@@ -958,7 +957,7 @@ static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
dev_err(&dev->dev, "There is no %d channel!\n",
new_fsl_chan->id);
err = -EINVAL;
- goto err;
+ goto err_no_chan;
}
fdev->chan[new_fsl_chan->id] = new_fsl_chan;
tasklet_init(&new_fsl_chan->tasklet, dma_do_tasklet,
@@ -997,23 +996,26 @@ static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
if (err) {
dev_err(&dev->dev, "DMA channel %s request_irq error "
"with return %d\n", dev->node->full_name, err);
- goto err;
+ goto err_no_irq;
}
}
err = fsl_dma_self_test(new_fsl_chan);
if (err)
- goto err;
+ goto err_self_test;
dev_info(&dev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id,
match->compatible, new_fsl_chan->irq);
return 0;
-err:
- dma_halt(new_fsl_chan);
- iounmap(new_fsl_chan->reg_base);
+
+err_self_test:
free_irq(new_fsl_chan->irq, new_fsl_chan);
+err_no_irq:
list_del(&new_fsl_chan->common.device_node);
+err_no_chan:
+ iounmap(new_fsl_chan->reg_base);
+err_no_reg:
kfree(new_fsl_chan);
return err;
}
@@ -1054,8 +1056,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
fdev = kzalloc(sizeof(struct fsl_dma_device), GFP_KERNEL);
if (!fdev) {
dev_err(&dev->dev, "No enough memory for 'priv'\n");
- err = -ENOMEM;
- goto err;
+ return -ENOMEM;
}
fdev->dev = &dev->dev;
INIT_LIST_HEAD(&fdev->common.channels);
@@ -1065,7 +1066,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
if (err) {
dev_err(&dev->dev, "Can't get %s property 'reg'\n",
dev->node->full_name);
- goto err;
+ goto err_no_reg;
}
dev_info(&dev->dev, "Probe the Freescale DMA driver for %s "
@@ -1103,6 +1104,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
err:
iounmap(fdev->reg_base);
+err_no_reg:
kfree(fdev);
return err;
}