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linux/drivers/perf
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Leonard Crestez 4c6a908ed7 perf/imx_ddr: Fix cpu hotplug state cleanup 
[ Upstream commit 9ee68b314e ]

This driver allocates a dynamic cpu hotplug state but never releases it.
If reloaded in a loop it will quickly trigger a WARN message:

	"No more dynamic states available for CPU hotplug"

Fix by calling cpuhp_remove_multi_state on remove like several other
perf pmu drivers.

Also fix the cleanup logic on probe error paths: add the missing
cpuhp_remove_multi_state call and properly check the return value from
cpuhp_state_add_instant_nocalls.

Fixes: 9a66d36cc7 ("drivers/perf: imx_ddr: Add DDR performance counter support to perf")
Acked-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2020-02-24 08:38:30 +01:00
..
hisilicon drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform 2019-11-07 13:07:55 +00:00
arm-cci.c perf/arm-cci: use devm_platform_ioremap_resource() to simplify code 2019-10-01 12:28:47 +01:00
arm-ccn.c perf: arm-ccn: Enable stats for CCN-512 interconnect 2019-10-28 15:40:42 +00:00
arm_dsu_pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
arm_pmu.c drivers/perf: arm_pmu: Fix failure path in PM notifier 2019-07-29 11:43:48 +01:00
arm_pmu_acpi.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
arm_pmu_platform.c perf: Convert to using %pOFn instead of device_node.name 2018-10-01 11:33:17 +01:00
arm_smmuv3_pmu.c perf/smmuv3: Remove the leftover put_cpu() in error path 2019-12-18 16:15:36 +00:00
arm_spe_pmu.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
fsl_imx8_ddr_perf.c perf/imx_ddr: Fix cpu hotplug state cleanup 2020-02-24 08:38:30 +01:00
Kconfig drivers/perf: imx_ddr: Add DDR performance counter support to perf 2019-06-13 11:07:57 +01:00
Makefile drivers/perf: imx_ddr: Add DDR performance counter support to perf 2019-06-13 11:07:57 +01:00
qcom_l2_pmu.c perf: Remove dev_err() usage after platform_get_irq() 2019-07-31 17:15:20 +01:00
qcom_l3_pmu.c docs: perf: move to the admin-guide 2019-07-15 09:20:27 -03:00
thunderx2_pmu.c drivers/perf: Add CCPI2 PMU support in ThunderX2 UNCORE driver. 2019-10-29 10:08:46 +00:00
xgene_pmu.c perf: xgene: use devm_platform_ioremap_resource() to simplify code 2019-10-01 12:28:46 +01:00