Qiang Yu 01bd694ac2 bus: mhi: host: Drop chan lock before queuing buffers ...

Ensure read and write locks for the channel are not taken in succession by
dropping the read lock from parse_xfer_event() such that a callback given
to client can potentially queue buffers and acquire the write lock in that
process. Any queueing of buffers should be done without channel read lock
acquired as it can result in multiple locks and a soft lockup.

Cc: <stable@vger.kernel.org> # 5.7
Fixes: 1d3173a3ba ("bus: mhi: core: Add support for processing events from client device")
Signed-off-by: Qiang Yu <quic_qianyu@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1702276972-41296-3-git-send-email-quic_qianyu@quicinc.com
[mani: added fixes tag and cc'ed stable]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

2023-12-16 10:54:29 +05:30

..

fsl-mc

bus: fsl-mc: Replace deprecated strncpy() with strscpy_pad()

2023-09-29 14:48:31 -07:00

mhi

bus: mhi: host: Drop chan lock before queuing buffers

2023-12-16 10:54:29 +05:30

arm-cci.c

bus: arm-cci: remove unnecessary unreachable()

2018-05-14 01:22:49 -07:00

arm-integrator-lm.c

bus: arm-integrator-lm: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:50 -07:00

brcmstb_gisb.c

bus: brcmstb_gisb: Use devm_platform_get_and_ioremap_resource()

2023-03-14 14:07:16 -07:00

bt1-apb.c

bus: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:53 -07:00

bt1-axi.c

bus: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:53 -07:00

da8xx-mstpri.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

hisi_lpc.c

bus: Explicitly include correct DT includes

2023-08-12 10:31:01 +02:00

imx-weim.c

bus: imx-weim: use devm_platform_ioremap_resource

2023-07-19 10:14:11 +08:00

intel-ixp4xx-eb.c

bus: ixp4xx: fix IXP4XX_EXP_T1_MASK

2023-07-05 22:22:55 +02:00

Kconfig

bus: brcmstb_gisb: Depend on SoC specifics over generic arm

2023-10-09 11:51:08 -07:00

Makefile

bus: add driver for initializing the SSC bus on (some) qcom SoCs

2022-04-19 13:03:57 -05:00

mips_cdmm.c

driver core: make struct bus_type.uevent() take a const *

2023-01-27 13:45:52 +01:00

moxtet.c

spi: make remove callback a void function

2022-02-09 13:00:45 +00:00

mvebu-mbus.c

bus: mvebu-mbus: Remove open coded "ranges" parsing

2023-04-18 11:18:24 -05:00

omap_l3_noc.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE

2022-06-10 14:51:36 +02:00

omap_l3_noc.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE

2022-06-10 14:51:36 +02:00

omap_l3_smx.c

Merge tag 'soc-arm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-08-30 16:49:40 -07:00

omap_l3_smx.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

omap-ocp2scp.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157

2019-05-30 11:26:37 -07:00

qcom-ebi2.c

bus: qcom: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:50 -07:00

qcom-ssc-block-bus.c

bus: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:50 -07:00

simple-pm-bus.c

bus: Explicitly include correct DT includes

2023-08-12 10:31:01 +02:00

sun50i-de2.c

bus: sun50i-de2: Adjust printing error message

2021-10-13 14:48:48 +02:00

sunxi-rsb.c

Merge tag 'soc-arm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-08-30 16:49:40 -07:00

tegra-aconnect.c

bus: tegra-aconnect: add system sleep callbacks

2019-03-28 17:26:14 +01:00

tegra-gmi.c

bus: tegra-gmi: Convert to devm_platform_ioremap_resource()

2023-07-21 17:27:33 +02:00

ti-pwmss.c

bus: Explicitly include correct DT includes

2023-08-12 10:31:01 +02:00

ti-sysc.c

bus: ti-sysc: Fix SYSC_QUIRK_SWSUP_SIDLE_ACT handling for uart wake-up

2023-09-13 10:24:53 +03:00

ts-nbus.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)

2022-06-10 14:51:35 +02:00

uniphier-system-bus.c

bus: uniphier-system-bus: Remove open coded "ranges" parsing

2023-03-30 13:37:21 -05:00

vexpress-config.c

bus: vexpress-config: Annotate struct vexpress_syscfg_func with __counted_by

2023-09-25 19:38:27 +01:00