The i.MX SDMA driver leaks memory when a currently running descriptor is aborted. Calling vchan_terminate_vdesc() on it to fix this revealed that the virt-dma support calls the desc_free with the spin_lock held. This doesn't work for the SDMA driver because it calls dma_free_coherent in its desc_free hook. This series aims to fix that up. Changes since v1: - rebase on v5.5-rc1 - Swap patches 1 and 2 for bisectablity - Rename desc_aborted to desc_terminated - Free up terminated descriptors immediately instead of letting them accumulate *** BLURB HERE *** Sascha Hauer (6): dmaengine: virt-dma: Do not call desc_free() under a spin_lock dmaengine: virt-dma: Add missing locking around list operations dmaengine: imx-sdma: rename function dmaengine: imx-sdma: find desc first in sdma_tx_status dmaengine: imx-sdma: Fix memory leak ARM: imx_v6_v7_defconfig: Enable NFS_V4_1 and NFS_V4_2 support arch/arm/configs/imx_v6_v7_defconfig | 2 ++ drivers/dma/imx-sdma.c | 37 +++++++++++++++++----------- drivers/dma/virt-dma.c | 1 + drivers/dma/virt-dma.h | 27 +++++++++++--------- 4 files changed, 41 insertions(+), 26 deletions(-) -- 2.24.0
