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
..
ep	bus: mhi: ep: Add checks for read/write callbacks while registering controllers	2023-12-15 14:20:13 +05:30
host	bus: mhi: host: Drop chan lock before queuing buffers	2023-12-16 10:54:29 +05:30
Kconfig	bus: mhi: ep: Add support for registering MHI endpoint controllers	2022-04-26 13:17:40 +02:00
Makefile	bus: mhi: Update Makefile to used Kconfig flags	2023-01-27 12:30:53 +05:30
common.h	bus: mhi: ep: Add support for sending events to the host	2022-04-26 13:17:41 +02:00