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| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2015-05-11 12:56:49 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-05-13 10:50:24 +0300 |
| commit | 4a00c95dcdba45c9592af2e908c0816fd54f5544 (patch) | |
| tree | 483eb070e04f8ee06552958a2287e4d53036af33 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 853b160aaafbe27d6304c8832bb7340d57c6b04e (diff) | |
| download | linux-4a00c95dcdba45c9592af2e908c0816fd54f5544.tar.xz | |
x86/hpet: Pass proper pointer to irq_alloc_info
Fix the following oops:
hpet_msi_get_hwirq+0x1f/0x27
msi_domain_alloc+0x35/0xfe
? trace_hardirqs_on_caller+0x16c/0x188
irq_domain_alloc_irqs_recursive+0x51/0x95
__irq_domain_alloc_irqs+0x151/0x223
hpet_assign_irq+0x5d/0x68
hpet_msi_capability_lookup+0x121/0x1cb
? hpet_enable+0x2b4/0x2b4
hpet_late_init+0x5f/0xf2
? hpet_enable+0x2b4/0x2b4
do_one_initcall+0x184/0x199
kernel_init_freeable+0x1af/0x237
? rest_init+0x13a/0x13a
kernel_init+0xe/0xd4
ret_from_fork+0x3f/0x70
? rest_init+0x13a/0x13a
Since 3cb96f0c9733 ('x86/hpet: Enhance HPET IRQ to support
hierarchical irqdomains') hpet_msi_capability_lookup() uses
hpet_assign_irq(). The latter initializes irq_alloc_info on stack, but
passes a NULL pointer to irq_domain_alloc_irqs(), which causes a NULL
pointer dereference later in hpet_msi_get_hwirq().
Pass the pointer to the irq_alloc_info irq_domain_alloc_irqs().
Fixes: 3cb96f0c9733 'x86/hpet: Enhance HPET IRQ to support hierarchical irqdomains'
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Link: http://lkml.kernel.org/r/20150512041444.GA1094@swordfish
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions