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[v2,5/5] hyperv-fb: kick off efifb early

Message ID 1393237516-28545-6-git-send-email-kraxel@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Gerd Hoffman Feb. 24, 2014, 10:25 a.m. UTC 
Remove firmware framebuffer before initializing hyperv-fb.  Needed
on gen2 virtual machines.   Letting register_framebuffer handle the
switchover results in efifb still being active while hyperv graphics
are initialized, which in turn can make the linux kernel hang.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/video/hyperv_fb.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index ec4b22c..b425951 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -683,6 +683,7 @@  static int hvfb_getmem(struct fb_info *info)
 		info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
 		info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
 	}
+	remove_conflicting_framebuffers(info->apertures, "hyperv-fb", false);
 
 	info->fix.smem_start = par->mem.start;
 	info->fix.smem_len = screen_fb_size;