diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 59e0949fb079..d94445f5f882 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3883,6 +3883,17 @@ void pci_release_region(struct pci_dev *pdev, int bar) release_mem_region(pci_resource_start(pdev, bar), pci_resource_len(pdev, bar)); + /* + * This devres utility makes this function sometimes managed + * (when pcim_enable_device() has been called before). + * + * This is bad because it conflicts with the pcim_ functions being + * exclusively responsible for managed PCI. Its "sometimes yes, + * sometimes no" nature can cause bugs. + * + * TODO: Remove this once all users that use pcim_enable_device() PLUS + * a region request function have been ported to using pcim_ functions. + */ dr = find_pci_dr(pdev); if (dr) dr->region_mask &= ~(1 << bar); @@ -3927,6 +3938,17 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, goto err_out; } + /* + * This devres utility makes this function sometimes managed + * (when pcim_enable_device() has been called before). + * + * This is bad because it conflicts with the pcim_ functions being + * exclusively responsible for managed pci. Its "sometimes yes, + * sometimes no" nature can cause bugs. + * + * TODO: Remove this once all users that use pcim_enable_device() PLUS + * a region request function have been ported to using pcim_ functions. + */ dr = find_pci_dr(pdev); if (dr) dr->region_mask |= 1 << bar; |