diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-05-06 13:40:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-16 13:32:21 +0200 |
| commit | 158adcb7fd7e6a23cbad50f27685ca2afdb6d15e (patch) | |
| tree | 8328da9f5b6b55711fc880140325ea80e785d481 /tools/lib/subcmd/parse-options.c | |
| parent | b8962cf98595d1ec62f40f23667de830567ec8bc (diff) | |
serial: sh-sci: protect invalidating RXDMA on shutdown
[ Upstream commit aae20f6e34cd0cbd67a1d0e5877561c40109a81b ]
The to-be-fixed commit removed locking when invalidating the DMA RX
descriptors on shutdown. It overlooked that there is still a rx_timer
running which may still access the protected data. So, re-add the
locking.
Reported-by: Dirk Behme <dirk.behme@de.bosch.com>
Closes: https://lore.kernel.org/r/ee6c9e16-9f29-450e-81da-4a8dceaa8fc7@de.bosch.com
Fixes: 2c4ee23530ff ("serial: sh-sci: Postpone DMA release when falling back to PIO")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20240506114016.30498-7-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/lib/subcmd/parse-options.c')
0 files changed, 0 insertions, 0 deletions