bus: mhi: ep: Do not allocate event ring element on stack

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[ Upstream commit 987fdb5a43 ]

It is possible that the host controller driver would use DMA framework to
write the event ring element. So avoid allocating event ring element on the
stack as DMA cannot work on vmalloc memory.

Cc: stable@vger.kernel.org
Fixes: 961aeb6892 ("bus: mhi: ep: Add support for sending events to the host")
Link: https://lore.kernel.org/r/20230901073502.69385-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Manivannan Sadhasivam 2023-09-01 13:05:02 +05:30 • committed by Greg Kroah-Hartman

parent 512fc4d735

commit ea3357c6cf

1 changed files with 50 additions and 18 deletions

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drivers/bus/mhi/ep/main.c

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