[PATCH v3 0/2] rsxx: RSXX driver Bug fixes.

[Philip J. Kelleher]

The incoming patch series contains 2 patches for the
rsxx driver (drivers/block/rsxx). 

Version 1:
A patch series containing 5 patches was sent out a few
weeks ago.

Version 2:
o This version decreased the number of patches for the patch
  series based on importance.
o Started using the function pci_dma_mapping_error to check
  the return status of pci_map_page.

Version 3:
o Fixes a compile error in patch 1.
o Changed the error handling for pci_map_page
  to cancel all dmas instead of just returning
  out.

Patch 1:
	The driver wasn't handling the return value
	of pci_map_page correctly for the PowerPC
	architecture. This also uncovered a double
	free scenario that is fixed here.

Patch 2:
	In this patch, the pci_map_page function has
	been moved into our issued workqueue to prevent
	an us running out of mappable addresses on non-
	HWWD PCIe x8 slots. The maximum amount that
	can possible be mapped at one time now is:
	255 dmas X 4 dma channels X 4096 Bytes.

Regards,
- Philip Kelleher
	

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