1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 02bcdb1240c..99b95ca42a7 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -481,6 +481,7 @@ int radeon_atombios_init(struct radeon_device *rdev)
         atom_card_info->pll_write = cail_pll_write;
 
         rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
+        mutex_init(&rdev->mode_info.atom_context->mutex);
         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
         atom_allocate_fb_scratch(rdev->mode_info.atom_context);
         return 0;