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| author | Suzuki K Poulose | 2019-08-01 19:23:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-08-01 20:51:34 +0200 |
| commit | 5511c0c309db4c526a6e9f8b2b8a1483771574bc (patch) | |
| tree | 9ed23dca6007715700c55e52c69660dca367a16a /Makefile | |
| parent | MAINTAINERS: Move linux-fpga tree to new location (diff) | |
| download | kernel-qcow2-linux-5511c0c309db4c526a6e9f8b2b8a1483771574bc.tar.gz kernel-qcow2-linux-5511c0c309db4c526a6e9f8b2b8a1483771574bc.tar.xz kernel-qcow2-linux-5511c0c309db4c526a6e9f8b2b8a1483771574bc.zip | |
coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
While running the linux-next with CONFIG_DEBUG_LOCKS_ALLOC enabled,
I get the following splat.
BUG: key ffffcb5636929298 has not been registered!
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 53 at kernel/locking/lockdep.c:3669 lockdep_init_map+0x164/0x1f0
CPU: 1 PID: 53 Comm: kworker/1:1 Tainted: G W 5.2.0-next-20190712-00015-g00ad4634222e-dirty #603
Workqueue: events amba_deferred_retry_func
pstate: 60c00005 (nZCv daif +PAN +UAO)
pc : lockdep_init_map+0x164/0x1f0
lr : lockdep_init_map+0x164/0x1f0
[ trimmed ]
Call trace:
lockdep_init_map+0x164/0x1f0
__kernfs_create_file+0x9c/0x158
sysfs_add_file_mode_ns+0xa8/0x1d0
sysfs_add_file_to_group+0x88/0xd8
etm_perf_add_symlink_sink+0xcc/0x138
coresight_register+0x110/0x280
tmc_probe+0x160/0x420
[ trimmed ]
---[ end trace ab4cc669615ba1b0 ]---
Fix this by initialising the dynamically allocated attribute properly.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: bb8e370bdc14 ("coresight: perf: Add "sinks" group to PMU directory")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Fixed a typograhic error in the changelog]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190801172323.18359-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions