diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-05-06 13:40:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-10 11:48:33 +0100 |
| commit | aae20f6e34cd0cbd67a1d0e5877561c40109a81b (patch) | |
| tree | 0994f638e147ca290367b94a85d306435b92b62e /drivers/usb/cdns3/cdns3-trace.h | |
| parent | 6bd23e0c2bb6c65d4f5754d1456bc9a4427fc59b (diff) | |
serial: sh-sci: protect invalidating RXDMA on shutdown
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>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-trace.h')
0 files changed, 0 insertions, 0 deletions