dmaengine: add dma_device_get() helper

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Add dma_device_get() helper to match dma_device_put() to make code
symmetric. It wraps open-coded kref_get_unless_zero() and asserts that
dma_list_mutex is held, matching its put counterpart.

No functional change intended.

Suggested-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Shivank Garg <shivankg@amd.com>
Link: https://patch.msgid.link/20260822-dmaengine-kref-fix-v5-1-d4a4ee47d927@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Shivank Garg 2026-08-22 19:22:03 +00:00 • committed by Vinod Koul

parent a7df136ec5

commit 424103642d

1 changed files with 7 additions and 2 deletions

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drivers/dma/dmaengine.c

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