Merge tag 'drm-intel-next-2015-03-13-merge' of git://anongit.freedesktop.org/drm-intel into drm-next

drm-intel-next-2015-03-13-rebased:
- EU count report param for gen9+ (Jeff McGee)
- piles of pll/wm/... fixes for chv, finally out of preliminary hw support
  (Ville, Vijay)
- gen9 rps support from Akash
- more work to move towards atomic from Matt, Ander and others
- runtime pm support for skl (Damien)
- edp1.4 intermediate link clock support (Sonika)
- use frontbuffer tracking for fbc (Paulo)
- remove ilk rc6 (John Harrison)
- a bunch of smaller things and fixes all over

Includes backmerge because git rerere couldn't keep up any more.

* tag 'drm-intel-next-2015-03-13-merge' of git://anongit.freedesktop.org/drm-intel: (366 commits)
  drm/i915: Make sure the primary plane is enabled before reading out the fb state
  drm/i915: Update DRIVER_DATE to 20150313
  drm/i915: Fix vmap_batch page iterator overrun
  drm/i915: Export total subslice and EU counts
  drm/i915: redefine WARN_ON_ONCE to include the condition
  drm/i915/skl: Implement WaDisableHBR2
  drm/i915: Remove the preliminary_hw_support shackles from CHV
  drm/i915: Read CHV_PLL_DW8 from the correct offset
  drm/i915: Rewrite IVB FDI bifurcation conflict checks
  drm/i915: Rewrite some some of the FDI lane checks
  drm/i915/skl: Enable the RPS interrupts programming
  drm/i915/skl: Enabling processing of Turbo interrupts
  drm/i915/skl: Updated the i915_frequency_info debugfs function
  drm/i915: Simplify the way BC bifurcation state consistency is kept
  drm/i915/skl: Updated the act_freq_mhz_show sysfs function
  drm/i915/skl: Updated the gen9_enable_rps function
  drm/i915/skl: Updated the gen6_rps_limits function
  drm/i915/skl: Restructured the gen6_set_rps_thresholds function
  drm/i915/skl: Updated the gen6_set_rps function
  drm/i915/skl: Updated the gen6_init_rps_frequencies function
  ...

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index a0197fd4e95c..3ce39d10fafb 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -139,6 +139,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws)
 				1,
 				DMA_MEM_TO_DEV,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!txdesc)
+		return NULL;
+
 	txdesc->callback = dw_spi_dma_tx_done;
 	txdesc->callback_param = dws;
 
@@ -184,6 +187,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws)
 				1,
 				DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!rxdesc)
+		return NULL;
+
 	rxdesc->callback = dw_spi_dma_rx_done;
 	rxdesc->callback_param = dws;