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linux/kernel/irq
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Kevin Hao 4f7d834cec irqdomain: Fix a memory leak in irq_domain_push_irq() 
commit 0f394daef8 upstream.

Fix a memory leak reported by kmemleak:
unreferenced object 0xffff000bc6f50e80 (size 128):
  comm "kworker/23:2", pid 201, jiffies 4294894947 (age 942.132s)
  hex dump (first 32 bytes):
    00 00 00 00 41 00 00 00 86 c0 03 00 00 00 00 00  ....A...........
    00 a0 b2 c6 0b 00 ff ff 40 51 fd 10 00 80 ff ff  ........@Q......
  backtrace:
    [<00000000e62d2240>] kmem_cache_alloc_trace+0x1a4/0x320
    [<00000000279143c9>] irq_domain_push_irq+0x7c/0x188
    [<00000000d9f4c154>] thunderx_gpio_probe+0x3ac/0x438
    [<00000000fd09ec22>] pci_device_probe+0xe4/0x198
    [<00000000d43eca75>] really_probe+0xdc/0x320
    [<00000000d3ebab09>] driver_probe_device+0x5c/0xf0
    [<000000005b3ecaa0>] __device_attach_driver+0x88/0xc0
    [<000000004e5915f5>] bus_for_each_drv+0x7c/0xc8
    [<0000000079d4db41>] __device_attach+0xe4/0x140
    [<00000000883bbda9>] device_initial_probe+0x18/0x20
    [<000000003be59ef6>] bus_probe_device+0x98/0xa0
    [<0000000039b03d3f>] deferred_probe_work_func+0x74/0xa8
    [<00000000870934ce>] process_one_work+0x1c8/0x470
    [<00000000e3cce570>] worker_thread+0x1f8/0x428
    [<000000005d64975e>] kthread+0xfc/0x128
    [<00000000f0eaa764>] ret_from_fork+0x10/0x18

Fixes: 495c38d300 ("irqdomain: Add irq_domain_{push,pop}_irq() functions")
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200120043547.22271-1-haokexin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:33:57 -08:00
..
affinity.c genirq/affinity: Spread IRQs to all available NUMA nodes 2019-02-12 19:46:57 +01:00
autoprobe.c genirq: Delay deactivation in free_irq() 2019-07-21 09:03:12 +02:00
chip.c genirq: Delay deactivation in free_irq() 2019-07-21 09:03:12 +02:00
cpuhotplug.c genirq: Delay deactivation in free_irq() 2019-07-21 09:03:12 +02:00
debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk 2018-02-01 13:36:15 -08:00
debugfs.c genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug 2018-06-22 14:22:00 +02:00
devres.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
dummychip.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
generic-chip.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
handle.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
internals.h genirq: Add optional hardware synchronization for shutdown 2019-07-21 09:03:13 +02:00
ipi.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
irq_sim.c genirq/irq_sim: Remove the license boilerplate 2018-04-26 22:26:39 +02:00
irqdesc.c genirq: Properly pair kobject_del() with kobject_add() 2019-08-29 08:28:57 +02:00
irqdomain.c irqdomain: Fix a memory leak in irq_domain_push_irq() 2020-02-11 04:33:57 -08:00
Kconfig genirq/irqchip: Remove MULTI_IRQ_HANDLER as it's now obselete 2018-08-03 12:14:10 +02:00
Makefile Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:33:11 -08:00
manage.c genirq: Add optional hardware synchronization for shutdown 2019-07-21 09:03:13 +02:00
matrix.c irq/matrix: Fix memory overallocation 2019-12-01 09:17:13 +01:00
migration.c genirq/migration: Avoid out of line call if pending is not set 2018-06-06 15:18:20 +02:00
msi.c genirq/msi: Allow level-triggered MSIs to be exposed by MSI providers 2018-05-13 15:58:59 +02:00
pm.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
proc.c genirq: Speedup show_interrupts() 2018-06-22 14:22:58 +02:00
resend.c genirq: Prevent NULL pointer dereference in resend_irqs() 2019-09-19 09:09:34 +02:00
settings.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spurious.c genirq: Cleanup top of file comments 2018-03-20 14:23:27 +01:00
timings.c genirq: Remove license boilerplate/references 2018-03-20 14:23:28 +01:00