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linux-stable/drivers/rpmsg
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Shengjiu Wang abe13e9a56 rpmsg: char: Add mutex protection for rpmsg_eptdev_open() 
There is no mutex protection for rpmsg_eptdev_open(),
especially for eptdev->ept read and write operation.
It may cause issues when multiple instances call
rpmsg_eptdev_open() in parallel,the return state
may be success or EBUSY.

Fixes: 964e8bedd5a1 ("rpmsg: char: Return an error if device already open")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1653104105-16779-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-06-14 14:58:10 -06:00
..
Kconfig
rpmsg: Move the rpmsg control device from rpmsg_char to rpmsg_ctrl
2022-03-13 11:49:53 -05:00
Makefile
rpmsg: Move the rpmsg control device from rpmsg_char to rpmsg_ctrl
2022-03-13 11:49:53 -05:00
mtk_rpmsg.c
rpmsg: Change naming of mediatek rpmsg property
2021-09-27 18:32:06 -05:00
qcom_glink_native.c
rpmsg: Update rpmsg_chrdev_register_device function
2022-03-13 11:49:53 -05:00
qcom_glink_native.h
rpmsg: glink: Switch to SPDX license identifier
2018-06-03 17:37:15 -07:00
qcom_glink_rpm.c
rpmsg: glink: Switch to SPDX license identifier
2018-06-03 17:37:15 -07:00
qcom_glink_smem.c
rpmsg: glink: Set tail pointer to 0 at end of FIFO
2019-10-11 11:34:12 -07:00
qcom_glink_ssr.c
rpmsg: glink: add include of header file
2021-01-05 22:22:40 -06:00
qcom_smd.c
rpmsg: qcom_smd: Fix returning 0 if irq_of_parse_and_map() fails
2022-04-28 14:32:15 -05:00
rpmsg_char.c
rpmsg: char: Add mutex protection for rpmsg_eptdev_open()
2022-06-14 14:58:10 -06:00
rpmsg_char.h
rpmsg: char: Export eptdev create and destroy functions
2022-03-13 11:49:53 -05:00
rpmsg_core.c
rpmsg: use local 'dev' variable
2022-05-06 09:51:54 +02:00
rpmsg_ctrl.c
rpmsg: ctrl: Introduce new RPMSG_CREATE/RELEASE_DEV_IOCTL controls
2022-03-13 11:49:53 -05:00
rpmsg_internal.h
rpmsg: Fix calling device_lock() on non-initialized device
2022-05-06 09:51:33 +02:00
rpmsg_ns.c
rpmsg: Fix calling device_lock() on non-initialized device
2022-05-06 09:51:33 +02:00
virtio_rpmsg_bus.c
rpmsg: virtio: Fix the unregistration of the device rpmsg_ctrl
2022-04-26 09:27:15 -06:00