[PATCH 0/6] dmaengine: zynqmp_dma: Fix error paths and follow-up cleanups

[Golla Nagendra <nagendra.golla@amd.com>]

This series fixes error-path cleanup issues in alloc/probe flows and
applies follow-up cleanups in the Xilinx ZynqMP DMA driver.

Patch 1 fixes alloc_chan_resources() rollback after runtime PM has been
acquired, including software descriptor pool cleanup on coherent
allocation failure.

Patch 2 fixes channel probe/remove error handling by preserving
platform_get_irq() errors, initializing/staging chan->irq safely, and
registering the channel node only after IRQ setup succeeds.

Patch 3 updates stale kerneldoc comments to match current behavior.

Patch 4 applies minor whitespace formatting cleanup in
zynqmp_dma_chan_probe().

Patch 5 rejects zero-length memcpy preparations and documents the return
behavior.

Patch 6 removes an unused define and drops a duplicate interrupt enable
bit from the default IRQ mask.


Golla Nagendra (6):
  dmaengine: zynqmp_dma: Fix alloc_chan_resources error cleanup
  dmaengine: zynqmp_dma: Fix chan probe error handling
  dmaengine: zynqmp_dma: Fix stale kerneldoc comments
  dmaengine: zynqmp_dma: Fix minor whitespace
  dmaengine: zynqmp_dma: Reject zero-length memcpy transfers
  dmaengine: zynqmp_dma: Remove unused define and duplicate IRQ bit

 drivers/dma/xilinx/zynqmp_dma.c | 72 +++++++++++++++++++++------------
 1 file changed, 46 insertions(+), 26 deletions(-)

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2.43.7