tree: git://anongit.freedesktop.org/drm-intel drm-intel-next-queued head: 4bb6a9d5d9a8289673c4cb0786d44be8a63c21db commit: 6b97b118d4d542c7bc25b725c6de3947fffb921b [6/7] drm/i915/display: Extract ilk_read_luts()
If you fix the issue, kindly add following tag Reported-by: kbuild test robot lkp@intel.com
New smatch warnings: drivers/gpu/drm/i915/display/intel_color.c:1576 ilk_read_lut_10() error: potential null dereference 'blob'. (drm_property_create_blob returns null)
Old smatch warnings: drivers/gpu/drm/i915/display/intel_color.c:1535 i9xx_read_lut_8() error: potential null dereference 'blob'. (drm_property_create_blob returns null)
vim +/blob +1576 drivers/gpu/drm/i915/display/intel_color.c
1558 1559 static struct drm_property_blob * 1560 ilk_read_lut_10(const struct intel_crtc_state *crtc_state) 1561 { 1562 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); 1563 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); 1564 u32 lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size; 1565 enum pipe pipe = crtc->pipe; 1566 struct drm_property_blob *blob; 1567 struct drm_color_lut *blob_data; 1568 u32 i, val; 1569 1570 blob = drm_property_create_blob(&dev_priv->drm, 1571 sizeof(struct drm_color_lut) * lut_size, 1572 NULL); 1573 if (IS_ERR(blob)) 1574 return NULL; 1575
1576 blob_data = blob->data;
1577 1578 for (i = 0; i < lut_size; i++) { 1579 val = I915_READ(PREC_PALETTE(pipe, i)); 1580 1581 blob_data[i].red = intel_color_lut_pack(REG_FIELD_GET( 1582 PREC_PALETTE_RED_MASK, val), 10); 1583 blob_data[i].green = intel_color_lut_pack(REG_FIELD_GET( 1584 PREC_PALETTE_GREEN_MASK, val), 10); 1585 blob_data[i].blue = intel_color_lut_pack(REG_FIELD_GET( 1586 PREC_PALETTE_BLUE_MASK, val), 10); 1587 } 1588 1589 return blob; 1590 } 1591
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