lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 14 Mar 2022 12:54:01 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Jon Lin <jon.lin@...k-chips.com>, Mark Brown <broonie@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.15 059/110] spi: rockchip: terminate dma transmission when slave abort From: Jon Lin <jon.lin@...k-chips.com> [ Upstream commit 80808768e41324d2e23de89972b5406c1020e6e4 ] After slave abort, all DMA should be stopped, or it will affect the next transmission and maybe abort again. Signed-off-by: Jon Lin <jon.lin@...k-chips.com> Link: https://lore.kernel.org/r/20220216014028.8123-3-jon.lin@rock-chips.com Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/spi/spi-rockchip.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index 4f65ba3dd19c..c6a1bb09be05 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -585,6 +585,12 @@ static int rockchip_spi_slave_abort(struct spi_controller *ctlr) { struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); + if (atomic_read(&rs->state) & RXDMA) + dmaengine_terminate_sync(ctlr->dma_rx); + if (atomic_read(&rs->state) & TXDMA) + dmaengine_terminate_sync(ctlr->dma_tx); + atomic_set(&rs->state, 0); + spi_enable_chip(rs, false); rs->slave_abort = true; spi_finalize_current_transfer(ctlr); -- 2.34.1
Powered by blists - more mailing lists