Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/all/20230323113318.9473-2-cai.huoqing@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
err_pci_iounmap_bar1:
pci_iounmap(pdev, addr);
err_release_regions:
- if (msi_ok) {
+ if (msi_ok)
pci_disable_msi(pdev);
- pci_clear_master(pdev);
- }
pci_release_regions(pdev);
err_disable_device:
pci_disable_device(pdev);
pci_iounmap(pdev, bdata->bar1_base);
- if (bdata->use_msi) {
+ if (bdata->use_msi)
pci_disable_msi(pdev);
- pci_clear_master(pdev);
- }
pci_release_regions(pdev);
pci_disable_device(pdev);