Srinivas Kandagatla ed27e6b215 soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute ... [ Upstream commit e6db818a3f51781ba12ac4d52b8773f74d57b06b ] running kernel with CONFIG_DEBUG_LOCKS_ALLOC enabled will below warning: BUG: key ffff502e09807098 has not been registered! DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 5 PID: 129 at kernel/locking/lockdep.c:4623 lockdep_init_map_waits+0xe8/0x250 Modules linked in: CPU: 5 PID: 129 Comm: kworker/5:1 Tainted: G W 5.10.0-rc1-00277-ged49f224ca3f-dirty #1210 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Workqueue: events deferred_probe_work_func pstate: 80c00005 (Nzcv daif +PAN +UAO -TCO BTYPE=--) pc : lockdep_init_map_waits+0xe8/0x250 lr : lockdep_init_map_waits+0xe8/0x250 [ Trimmed ] Call trace: lockdep_init_map_waits+0xe8/0x250 __kernfs_create_file+0x78/0x180 sysfs_add_file_mode_ns+0x94/0x1c8 internal_create_group+0x110/0x3e0 sysfs_create_group+0x18/0x28 devm_device_add_group+0x4c/0xb0 add_all_attributes+0x438/0x490 sdw_slave_sysfs_dpn_init+0x128/0x138 sdw_slave_sysfs_init+0x80/0xa0 sdw_drv_probe+0x94/0x170 really_probe+0x118/0x3e0 driver_probe_device+0x5c/0xc0 [ Trimmed ] CPU: 5 PID: 129 Comm: kworker/5:1 Tainted: G W 5.10.0-rc1-00277-ged49f224ca3f-dirty #1210 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Workqueue: events deferred_probe_work_func Call trace: dump_backtrace+0x0/0x1c0 show_stack+0x18/0x68 dump_stack+0xd8/0x134 __warn+0xa0/0x158 report_bug+0xc8/0x178 bug_handler+0x20/0x78 brk_handler+0x70/0xc8 [ Trimmed ] Fix this by initializing dynamically allocated sysfs attribute to keep lockdep happy! Fixes: bcac590299 ("soundwire: add Slave sysfs support") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20201104112941.1134-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-12-30 11:53:20 +01:00
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bus_type.c	soundwire: bus: add enumerated Slave device to device list	2020-09-28 11:17:40 +05:30
bus.c	soundwire updates for 5.10-rc1	2020-10-01 22:59:55 +02:00
bus.h	soundwire: bus: add enumerated Slave device to device list	2020-09-28 11:17:40 +05:30
cadence_master.c	soundwire: cadence: add data port test fail interrupt	2020-09-23 15:29:30 +05:30
cadence_master.h	soundwire: cadence: fix race condition between suspend and Slave device alerts	2020-09-09 13:14:42 +05:30
debugfs.c	soundwire: debugfs: clarify SDPX license with GPL-2.0-only	2020-05-05 08:51:44 +05:30
generic_bandwidth_allocation.c	soundwire: remove an unnecessary NULL check	2020-09-23 15:34:48 +05:30
intel_init.c	soundwire: intel_init: use FIELD_{GET|PREP}	2020-09-04 14:46:42 +05:30
intel.c	soundwire: intel: enable test modes	2020-09-23 15:29:30 +05:30
intel.h	soundwire: intel: pass link_mask information to each master	2020-09-03 16:14:39 +05:30
Kconfig	soundwire: Add generic bandwidth allocation algorithm	2020-09-18 17:48:51 +05:30
Makefile	soundwire: Add generic bandwidth allocation algorithm	2020-09-18 17:48:51 +05:30
master.c	soundwire: master: enable pm runtime	2020-08-17 12:04:48 +05:30
mipi_disco.c	soundwire: fix port_ready[] dynamic allocation in mipi_disco	2020-09-03 16:02:29 +05:30
qcom.c	soundwire: qcom: get max rows and cols info from compatible	2020-09-18 17:48:51 +05:30
slave.c	soundwire: sysfs: add slave status and device number before probe	2020-09-28 11:17:43 +05:30
stream.c	soundwire updates for 5.10-rc1	2020-10-01 22:59:55 +02:00
sysfs_local.h	soundwire: sysfs: add slave status and device number before probe	2020-09-28 11:17:43 +05:30
sysfs_slave_dpn.c	soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute	2020-12-30 11:53:20 +01:00
sysfs_slave.c	soundwire: sysfs: add slave status and device number before probe	2020-09-28 11:17:43 +05:30