pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here. 

Use pm_runtime_resume_and_get to fix it.

Qinglang Miao (3):
  dmaengine: stm32-dma: fix reference leak in stm32_dma
  dmaengine: stm32-dmamux: fix reference leak in stm32_dmamux
  dmaengine: stm32-mdma: fix reference leak in stm32-mdma

 drivers/dma/stm32-dma.c    | 4 ++--
 drivers/dma/stm32-dmamux.c | 6 +++---
 drivers/dma/stm32-mdma.c   | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

-- 
2.23.0