[PATCH] drm/bochs: Replace deprecated PCI implicit devres

[Philipp Stanner]

bochs uses pcim_enable_device(), which causes pci_request_region() to
implicitly set up devres callbacks which will release the region on
driver detach. Despite this, the driver calls pci_release_regions()
manually on driver teardown.

Implicit devres has been deprecated in PCI in commit 81fcf28e74a3 ("PCI:
Document hybrid devres hazards").

Replace the calls to pci_request_region() with ones to always-managed
pcim_request_region(). Remove the unnecessary call to
pci_release_regions().

Signed-off-by: Philipp Stanner <pstan...@redhat.com>
---
 drivers/gpu/drm/tiny/bochs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index 31fc5d839e10..888f12a67470 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -217,7 +217,7 @@ static int bochs_hw_init(struct drm_device *dev)
 
        if (pdev->resource[2].flags & IORESOURCE_MEM) {
                /* mmio bar with vga and bochs registers present */
-               if (pci_request_region(pdev, 2, "bochs-drm") != 0) {
+               if (pcim_request_region(pdev, 2, "bochs-drm") != 0) {
                        DRM_ERROR("Cannot request mmio region\n");
                        return -EBUSY;
                }
@@ -258,7 +258,7 @@ static int bochs_hw_init(struct drm_device *dev)
                size = min(size, mem);
        }
 
-       if (pci_request_region(pdev, 0, "bochs-drm") != 0)
+       if (pcim_request_region(pdev, 0, "bochs-drm") != 0)
                DRM_WARN("Cannot request framebuffer, boot fb still active?\n");
 
        bochs->fb_map = ioremap(addr, size);
@@ -302,7 +302,7 @@ static void bochs_hw_fini(struct drm_device *dev)
                release_region(VBE_DISPI_IOPORT_INDEX, 2);
        if (bochs->fb_map)
                iounmap(bochs->fb_map);
-       pci_release_regions(to_pci_dev(dev->dev));
+
        drm_edid_free(bochs->drm_edid);
 }
 
-- 
2.47.0