#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/fs.h>
+#include <linux/idr.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pci_regs.h>
char name[20];
struct bcm_vk *vk;
struct device *dev = &pdev->dev;
+ struct miscdevice *misc_device;
u32 boot_status;
vk = kzalloc(sizeof(*vk), GFP_KERNEL);
vk->devid = id;
snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id);
+ misc_device = &vk->miscdev;
+ misc_device->minor = MISC_DYNAMIC_MINOR;
+ misc_device->name = kstrdup(name, GFP_KERNEL);
+ if (!misc_device->name) {
+ err = -ENOMEM;
+ goto err_ida_remove;
+ }
+
+ err = misc_register(misc_device);
+ if (err) {
+ dev_err(dev, "failed to register device\n");
+ goto err_kfree_name;
+ }
INIT_WORK(&vk->wq_work, bcm_vk_wq_handler);
if (!vk->wq_thread) {
dev_err(dev, "Fail to create workqueue thread\n");
err = -ENOMEM;
- goto err_ida_remove;
+ goto err_misc_deregister;
}
/* sync other info */
}
}
+ dev_dbg(dev, "BCM-VK:%u created\n", id);
+
return 0;
err_destroy_workqueue:
destroy_workqueue(vk->wq_thread);
+err_misc_deregister:
+ misc_deregister(misc_device);
+
+err_kfree_name:
+ kfree(misc_device->name);
+ misc_device->name = NULL;
+
err_ida_remove:
ida_simple_remove(&bcm_vk_ida, id);
{
int i;
struct bcm_vk *vk = pci_get_drvdata(pdev);
+ struct miscdevice *misc_device = &vk->miscdev;
/*
* Trigger a reset to card and wait enough time for UCODE to rerun,
dma_free_coherent(&pdev->dev, nr_scratch_pages * PAGE_SIZE,
vk->tdma_vaddr, vk->tdma_addr);
+ /* remove if name is set which means misc dev registered */
+ if (misc_device->name) {
+ misc_deregister(misc_device);
+ kfree(misc_device->name);
+ ida_simple_remove(&bcm_vk_ida, vk->devid);
+ }
+
cancel_work_sync(&vk->wq_work);
destroy_workqueue(vk->wq_thread);
pci_iounmap(pdev, vk->bar[i]);
}
+ dev_dbg(&pdev->dev, "BCM-VK:%d released\n", vk->devid);
+
pci_release_regions(pdev);
pci_free_irq_vectors(pdev);
pci_disable_device(pdev);