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[media] s5p-mfc: Fix kernel warning on memory init 

Cleaned up the memory devices allocation code and added
missing device_initialize() call to remove the kernel warning
during memory allocations.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Arun Kumar K 2013-01-18 15:42:34 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель e82564475e
Коммит 6e83e6e25e
1 изменённых файлов: 45 добавлений и 33 удалений
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78
drivers/media/platform/s5p-mfc/s5p_mfc.c
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@ -1014,6 +1014,46 @@ static int match_child(struct device *dev, void *data)
static void *mfc_get_drv_data(struct platform_device *pdev);
static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev)
{
unsigned int mem_info[2];
dev->mem_dev_l = devm_kzalloc(&dev->plat_dev->dev,
sizeof(struct device), GFP_KERNEL);
if (!dev->mem_dev_l) {
mfc_err("Not enough memory\n");
return -ENOMEM;
}
device_initialize(dev->mem_dev_l);
of_property_read_u32_array(dev->plat_dev->dev.of_node,
"samsung,mfc-l", mem_info, 2);
if (dma_declare_coherent_memory(dev->mem_dev_l, mem_info[0],
mem_info[0], mem_info[1],
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0) {
mfc_err("Failed to declare coherent memory for\n"
"MFC device\n");
return -ENOMEM;
}
dev->mem_dev_r = devm_kzalloc(&dev->plat_dev->dev,
sizeof(struct device), GFP_KERNEL);
if (!dev->mem_dev_r) {
mfc_err("Not enough memory\n");
return -ENOMEM;
}
device_initialize(dev->mem_dev_r);
of_property_read_u32_array(dev->plat_dev->dev.of_node,
"samsung,mfc-r", mem_info, 2);
if (dma_declare_coherent_memory(dev->mem_dev_r, mem_info[0],
mem_info[0], mem_info[1],
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0) {
pr_err("Failed to declare coherent memory for\n"
"MFC device\n");
return -ENOMEM;
}
return 0;
}
/* MFC probe function */
static int s5p_mfc_probe(struct platform_device *pdev)
{
@ -1021,7 +1061,6 @@ static int s5p_mfc_probe(struct platform_device *pdev)
struct video_device *vfd;
struct resource *res;
int ret;
unsigned int mem_info[2];
pr_debug("%s++\n", __func__);
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
@ -1069,39 +1108,8 @@ static int s5p_mfc_probe(struct platform_device *pdev)
}
if (pdev->dev.of_node) {
dev->mem_dev_l = kzalloc(sizeof(struct device), GFP_KERNEL);
if (!dev->mem_dev_l) {
mfc_err("Not enough memory\n");
ret = -ENOMEM;
if (s5p_mfc_alloc_memdevs(dev) < 0)
goto err_res;
}
of_property_read_u32_array(pdev->dev.of_node, "samsung,mfc-l",
mem_info, 2);
if (dma_declare_coherent_memory(dev->mem_dev_l, mem_info[0],
mem_info[0], mem_info[1],
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0) {
mfc_err("Failed to declare coherent memory for\n"
"MFC device\n");
ret = -ENOMEM;
goto err_res;
}
dev->mem_dev_r = kzalloc(sizeof(struct device), GFP_KERNEL);
if (!dev->mem_dev_r) {
mfc_err("Not enough memory\n");
ret = -ENOMEM;
goto err_res;
}
of_property_read_u32_array(pdev->dev.of_node, "samsung,mfc-r",
mem_info, 2);
if (dma_declare_coherent_memory(dev->mem_dev_r, mem_info[0],
mem_info[0], mem_info[1],
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0) {
pr_err("Failed to declare coherent memory for\n"
"MFC device\n");
ret = -ENOMEM;
goto err_res;
}
} else {
dev->mem_dev_l = device_find_child(&dev->plat_dev->dev,
"s5p-mfc-l", match_child);
@ -1247,6 +1255,10 @@ static int s5p_mfc_remove(struct platform_device *pdev)
s5p_mfc_release_firmware(dev);
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]);
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[1]);
if (pdev->dev.of_node) {
put_device(dev->mem_dev_l);
put_device(dev->mem_dev_r);
}
s5p_mfc_final_pm(dev);
return 0;