Xixin Liu f643f520c4 perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ ...

The overflow IRQ handler dereferences cpu_hw_evt before the null check.
Move the check first. Defensive only; the cookie is valid on the normal
path today.

Fixes: a8625217a0 ("drivers/perf: riscv: Implement SBI PMU snapshot function")
Assisted-by: DeepSeek:deepseek-v3
Signed-off-by: Xixin Liu <liuxixin@kylinos.cn>
Link: https://patch.msgid.link/fdd42c791752.v2.1786420235.git.liuxixin@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>

2026-09-01 19:19:48 -06:00

..

amlogic

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm_cspmu

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

hisilicon

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

alibaba_uncore_drw_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

apple_m1_cpu_pmu.c

perf/apple_m1: Remove driver-specific throttle support

2025-05-21 13:57:44 +02:00

arm_brbe.c

perf: arm_pmuv3: Add support for the Branch Record Buffer Extension (BRBE)

2025-07-08 17:58:49 +01:00

arm_brbe.h

perf: arm_pmuv3: Add support for the Branch Record Buffer Extension (BRBE)

2025-07-08 17:58:49 +01:00

arm_dmc620_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm_dsu_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm_pmu_acpi.c

perf: arm_pmu_acpi: Get rid of the edge-triggered interrupt oddity

2026-08-02 11:16:22 +00:00

arm_pmu_platform.c

perf: arm_pmu: Request specific affinities for per CPU NMIs/interrupts

2025-10-27 17:16:35 +01:00

arm_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

arm_pmuv3.c

perf: arm_pmuv3: Zero initialize hw_id branch stack field

2026-08-07 11:55:16 +00:00

arm_smmuv3_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm_spe_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

arm_v6_pmu.c

perf/arm: Remove driver-specific throttle support

2025-05-21 13:57:44 +02:00

arm_v7_pmu.c

perf/arm: Remove driver-specific throttle support

2025-05-21 13:57:44 +02:00

arm_xscale_pmu.c

perf/arm: Remove driver-specific throttle support

2025-05-21 13:57:44 +02:00

arm-cci.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm-ccn.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

arm-cmn.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

arm-ni.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

cxl_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

dwc_pcie_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

fsl_imx8_ddr_perf.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

fsl_imx9_ddr_perf.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

fujitsu_uncore_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

Kconfig

perf: qcom: Unify user-visible "Qualcomm" name

2026-05-19 11:33:26 +01:00

Makefile

perf: add NVIDIA Tegra410 C2C PMU

2026-03-24 12:37:33 +00:00

marvell_cn10k_ddr_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

marvell_cn10k_tad_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

marvell_pem_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

nvidia_t410_c2c_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

nvidia_t410_cmem_latency_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

qcom_l2_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

qcom_l3_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

riscv_pmu_legacy.c

perf: RISC-V: store available counter mask as bitmap

2026-09-01 19:19:26 -06:00

riscv_pmu_sbi.c

perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ

2026-09-01 19:19:48 -06:00

riscv_pmu.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

starfive_starlink_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00

thunderx2_pmu.c

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22 15:38:37 -04:00

xgene_pmu.c

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20 11:41:46 -07:00