libdrm does not like the empty string for driver date. Use "0" instead, which has been used by virtio previously.
Reported-by: Steven Price <steven.pr...@arm.com> Closes: https://lore.kernel.org/r/9d0cff47-308e-4b11-a9f3-4157dc26b...@arm.com Fixes: 7fb8af6798e8 ("drm: deprecate driver date") Signed-off-by: Jani Nikula <jani.nik...@intel.com> --- drivers/gpu/drm/drm_ioctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 89feb7306e47..51f39912866f 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -530,9 +530,9 @@ int drm_version(struct drm_device *dev, void *data, err = drm_copy_field(version->name, &version->name_len, dev->driver->name); - /* Driver date is deprecated. Return the empty string. */ + /* Driver date is deprecated. Userspace expects a non-empty string. */ if (!err) - err = drm_copy_field(version->date, &version->date_len, ""); + err = drm_copy_field(version->date, &version->date_len, "0"); if (!err) err = drm_copy_field(version->desc, &version->desc_len, dev->driver->desc); -- 2.39.2
