diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_device.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index dcb272327281..23a301a87642 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -800,6 +800,15 @@ probe_gmdid_display(struct drm_i915_private *i915, u16 *ver, u16 *rel, u16 *step u32 val; int i; + /* The caller expects to ver, rel and step to be initialized + * here, and there's no good way to check when there was a + * failure and no_display was returned. So initialize all these + * values here zero, to be sure. + */ + *ver = 0; + *rel = 0; + *step = 0; + addr = pci_iomap_range(pdev, 0, i915_mmio_reg_offset(GMD_ID_DISPLAY), sizeof(u32)); if (!addr) { drm_err(&i915->drm, "Cannot map MMIO BAR to read display GMD_ID\n"); |