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authorLinus Torvalds <torvalds@linux-foundation.org>2026-06-23 15:51:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-06-23 15:51:14 -0700
commit558ef39aeb9a089a6be9dda8413b0b9d42e843ea (patch)
treee1e74a1737d7599ad4f6954e1b0b171df18cc5c9 /drivers/dma/dmaengine.c
parent62cf248de32f061d99cf7cd1675419d739031c5e (diff)
parent7524fe142b5a772f8421aeee2132cf7e21a00103 (diff)
downloadlinux-next-558ef39aeb9a089a6be9dda8413b0b9d42e843ea.tar.gz
linux-next-558ef39aeb9a089a6be9dda8413b0b9d42e843ea.zip
Merge tag 'dmaengine-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul: "Core: - New devm_of_dma_controller_register() API - Refactor devm_dma_request_chan() API New Support: - Loongson Multi-Channel DMA controller support - Renesas RZ/{T2H,N2H} support - Dw CV1800B DMA support - Switchtec DMA engine driver U pdates: - Xilinx AXI dma binding conversion - Renesas CHCTRL register read updates - AMD MDB Endpoint and non-LL mode Support - AXI dma handling of SW and HW cyclic transfers termination - Intel ioatdma and idxd driver updates" * tag 'dmaengine-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (62 commits) dt-bindings: dma: snps,dw-axi-dmac: Add fallback compatible for CV1800B MAINTAINERS: dmaengine/ti: Remove myself and add Vignesh as maintainer dmaengine: qcom: Unify user-visible "Qualcomm" name dt-bindings: dma: qcom,gpi: Document GPI DMA engine for Shikra SoC dmaengine: qcom: hidma: use sysfs_emit() in sysfs show callbacks dmaengine: dw-axi-dmac: fix PM for system sleep and channel alloc dmaengine: dw-axi-dmac: drop redundant DMAC enable in block start dmaengine: altera-msgdma: Use memcpy_toio for descriptor FIFO writes dt-bindings: dma: fsl-edma: add dma-channel-mask property description dmaengine: tegra: Fix burst size calculation dmaengine: iop32x-adma: Remove a leftover header file dmaengine: dma-axi-dmac: use DMA pool to manange DMA descriptor dmaengine: dma-axi-dmac: Drop struct clk from main struct dmaengine: dma-axi-dmac: Properly free struct axi_dmac_desc dmaengine: Fix possible use after free dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK dmaengine: dw-edma-pcie: Reject devices without driver data dmaengine: sh: rz-dmac: Add DMA ACK signal routing support irqchip/renesas-rzv2h: Add DMA ACK signal routing support dmaengine: dw-edma: Remove dw_edma_add_irq_mask() ...
Diffstat (limited to 'drivers/dma/dmaengine.c')
-rw-r--r--drivers/dma/dmaengine.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 405bd2fbb4a3..9049171df857 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -905,11 +905,12 @@ void dma_release_channel(struct dma_chan *chan)
mutex_lock(&dma_list_mutex);
WARN_ONCE(chan->client_count != 1,
"chan reference count %d != 1\n", chan->client_count);
- dma_chan_put(chan);
/* drop PRIVATE cap enabled by __dma_request_channel() */
if (--chan->device->privatecnt == 0)
dma_cap_clear(DMA_PRIVATE, chan->device->cap_mask);
+ dma_chan_put(chan);
+
if (chan->slave) {
sysfs_remove_link(&chan->dev->device.kobj, DMA_SLAVE_NAME);
sysfs_remove_link(&chan->slave->kobj, chan->name);