misc: fastrpc: Free DMA handles for RPC calls with no arguments

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commit 2064843038 upstream.

The FDs for DMA handles to be freed is updated in fdlist by DSP over
a remote call. This holds true even for remote calls with no
arguments. To handle this, get_args and put_args are needed to
be called for remote calls with no arguments also as fdlist
is allocated in get_args and FDs updated in fdlist is freed
in put_args.

Fixes: 8f6c1d8c4f ("misc: fastrpc: Add fdlist implementation")
Cc: stable <stable@kernel.org>
Signed-off-by: Ekansh Gupta <quic_ekangupt@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231013122007.174464-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ekansh Gupta 2023-10-13 13:20:05 +01:00 • committed by Greg Kroah-Hartman

parent 1e8851b513

commit 7737e9384e

1 changed files with 10 additions and 13 deletions

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drivers/misc/fastrpc.c

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