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| author | Kai-Heng Feng <kai.heng.feng@canonical.com> | 2021-04-13 19:05:08 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-04-14 00:19:11 +0200 |
| commit | d510c88cfbb294d2b1e2d0b71576e9b79d0e2e83 (patch) | |
| tree | adf2b84e3a4cf7e60702a09bacb38ee1151ad0d4 /Documentation/gpu/drm-internals.rst | |
| parent | drm: bridge: cdns-mhdp8546: Enable HDCP (diff) | |
| download | linux-d510c88cfbb294d2b1e2d0b71576e9b79d0e2e83.tar.xz linux-d510c88cfbb294d2b1e2d0b71576e9b79d0e2e83.zip | |
efifb: Check efifb_pci_dev before using it
On some platforms like Hyper-V and RPi4 with UEFI firmware, efifb is not
a PCI device.
So make sure efifb_pci_dev is found before using it.
Fixes: a6c0fd3d5a8b ("efifb: Ensure graphics device for efifb stays at PCI D0")
BugLink: https://bugs.launchpad.net/bugs/1922403
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210413170508.968148-1-kai.heng.feng@canonical.com
Diffstat (limited to 'Documentation/gpu/drm-internals.rst')
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