Matthias Kaehlcke daf9ac79e7 rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev ... commit 7a534ae89e upstream. struct rpmsg_eptdev contains a struct cdev. The current code frees the rpmsg_eptdev struct in rpmsg_eptdev_destroy(), but the cdev is a managed object, therefore its release is not predictable and the rpmsg_eptdev could be freed before the cdev is entirely released. The cdev_device_add/del() API was created to address this issue (see commit '233ed09d7fda ("chardev: add helper function to register char devs with a struct device")'), use it instead of cdev add/del(). Fixes: c0cdc19f84 ("rpmsg: Driver for user space endpoint interface") Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220110104706.v6.2.Idde68b05b88d4a2e6e54766c653f3a6d9e419ce6@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-01 17:27:07 +01:00
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Kconfig	rpmsg: Turn name service into a stand alone driver	2020-11-24 10:11:59 -06:00
Makefile	rpmsg: Turn name service into a stand alone driver	2020-11-24 10:11:59 -06:00
mtk_rpmsg.c	rpmsg: Avoid double-free in mtk_rpmsg_register_device	2020-09-15 03:43:24 +00:00
qcom_glink_native.c	rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()	2021-04-09 11:08:42 -05:00
qcom_glink_native.h	…
qcom_glink_rpm.c	…
qcom_glink_smem.c	…
qcom_glink_ssr.c	rpmsg: glink: add include of header file	2021-01-05 22:22:40 -06:00
qcom_smd.c	rpmsg: char: Use rpmsg_sendto to specify the message destination address	2021-03-17 14:16:36 -05:00
rpmsg_char.c	rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev	2022-02-01 17:27:07 +01:00
rpmsg_core.c	rpmsg: core: Clean up resources on announce_create failure.	2022-01-27 11:05:06 +01:00
rpmsg_internal.h	rpmsg: Make rpmsg_{register|unregister}_device() public	2020-11-24 10:11:52 -06:00
rpmsg_ns.c	rpmsg: Turn name service into a stand alone driver	2020-11-24 10:11:59 -06:00
virtio_rpmsg_bus.c	rpmsg: virtio: Register the rpmsg_char device	2021-03-17 14:16:47 -05:00