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Yunfei Dong e01ea1c419 media: v4l2-mem2mem: add lock to protect parameter num_rdy 
[ Upstream commit 56b5c3e67b ]

Getting below error when using KCSAN to check the driver. Adding lock to
protect parameter num_rdy when getting the value with function:
v4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready.

kworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue
kworker/u16:3: [name:report&]

kworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7:
kworker/u16:3:  v4l2_m2m_buf_queue+0xd8/0x10c

Signed-off-by: Pina Chen <pina.chen@mediatek.com>
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-23 17:32:30 +02:00
..
acpi ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep() 2023-06-15 18:05:19 +02:00
asm-generic word-at-a-time: use the same return type for has_zero regardless of endianness 2023-08-11 12:14:08 +02:00
clocksource
crypto
drm drm/dp_mst: Clear MSG_RDY flag before sending new message 2023-07-23 13:54:02 +02:00
dt-bindings dt-bindings: power: qcom,rpmpd: Add SA8155P 2023-05-24 20:34:49 -07:00
keys
kunit
kvm KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption 2023-07-27 08:56:43 +02:00
linux iopoll: Call cpu_relax() in busy loops 2023-08-23 17:32:26 +02:00
math-emu
media media: v4l2-mem2mem: add lock to protect parameter num_rdy 2023-08-23 17:32:30 +02:00
memory
misc
net RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing 2023-08-23 17:32:26 +02:00
pcmcia
ras
rdma RDMA/cma: Always set static rate to 0 for RoCE 2023-06-11 11:26:02 +03:00
rv
scsi Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
soc net: dsa: felix: make vsc9959_tas_guard_bands_update() visible to ocelot->ops 2023-07-23 13:53:40 +02:00
sound ASoC: Intel: avs: Account for UID of ACPI device 2023-05-22 11:18:24 +01:00
target scsi: target: iscsi: Remove unused transport_timer 2023-05-22 16:29:39 -04:00
trace tcp: add missing family to tcp_set_ca_state() tracepoint 2023-08-16 18:32:26 +02:00
uapi block: Fix a source code comment in include/uapi/linux/blkzoned.h 2023-08-03 10:25:57 +02:00
ufs scsi: ufs: core: mcq: Fix the incorrect OCS value for the device command 2023-07-19 16:36:16 +02:00
vdso
video
xen