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linux/arch/powerpc/kernel
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Benjamin Herrenschmidt e0d82a0a4e perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 
If the current CPU doesn't support performance counters,
cur_cpu_spec->oprofile_cpu_type can be NULL. The current
perf_counter modules don't test for that case and would thus
crash at boot time.

Bug reported by David Woodhouse.

Reported-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
LKML-Reference: <19066.48028.446975.501454@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-06 13:55:09 +02:00
..
vdso32 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
vdso64 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
.gitignore powerpc: Ignore generated vmlinux.lds in git 2008-10-07 14:26:18 +11:00
align.c powerpc: Keep track of emulated instructions 2009-05-21 15:44:26 +10:00
asm-offsets.c Merge commit 'origin/master' into next 2009-06-12 16:53:38 +10:00
audit.c
btext.c powerpc: Use the common ascii hex helpers 2008-08-20 16:34:57 +10:00
cacheinfo.c powerpc/cacheinfo: Rename cache_dir per-cpu variable 2009-01-13 14:48:02 +11:00
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Enable additional BAT registers in setup_745x_specifics() 2009-06-15 21:45:31 -05:00
cpu_setup_44x.S AMCC PPC 460SX redwood SoC platform initial framework 2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUs 2009-06-15 21:45:30 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
cputable.c powerpc: Add 2.06 tlbie mnemonics 2009-05-21 15:44:21 +10:00
crash_dump.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
crash.c powerpc: Increase CRASH_HANDLER_MAX 2008-06-30 22:31:00 +10:00
dbell.c powerpc: Add support for using doorbells for SMP IPI 2009-02-23 15:53:03 +11:00
dma-iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
dma-swiotlb.c powerpc: Add support for swiotlb on 32-bit 2009-06-09 16:49:18 +10:00
dma.c powerpc: Add support for swiotlb on 32-bit 2009-06-09 16:49:18 +10:00
entry_32.S powerpc: Add irqtrace support for 32-bit powerpc 2009-06-26 14:37:27 +10:00
entry_64.S Merge branch 'linus' into perfcounters/core-v2 2009-04-06 09:02:57 +02:00
exceptions-64s.S powerpc: Split exception handling out of head_64.S 2009-06-09 16:47:37 +10:00
firmware.c
fpu.S powerpc: Disable VSX or current process in giveup_fpu/altivec 2009-04-07 15:18:59 +10:00
ftrace.c Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
head_8xx.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_32.S powerpc: Map more memory early on 601 processors 2009-06-26 14:37:25 +10:00
head_40x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_44x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_64.S powerpc: Split exception handling out of head_64.S 2009-06-09 16:47:37 +10:00
head_booke.h powerpc: Add PTRACE_SINGLEBLOCK support 2009-06-09 13:29:25 +10:00
head_fsl_booke.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
ibmebus.c powerpc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:38 +11:00
idle_6xx.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_e500.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_power4.S
idle.c powerpc: ftrace, do not latency trace idle 2008-11-20 10:51:15 -08:00
init_task.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
io.c
iomap.c
iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
irq.c Merge commit 'origin/master' into next 2009-06-12 16:53:38 +10:00
isa-bridge.c
kgdb.c kgdb, x86, arm, mips, powerpc: ignore user space single stepping 2008-09-26 10:36:41 -05:00
kprobes.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
l2cr_6xx.S
legacy_serial.c powerpc/powermac: Fixup default serial port device for pmac_zilog 2008-07-28 16:30:53 +10:00
lparcfg.c powerpc: Display processor virtualization resource allocs in lparcfg 2009-06-02 10:36:10 +10:00
machine_kexec_32.c kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
machine_kexec_64.c powerpc/32: Setup OF properties for kdump 2008-12-23 15:13:29 +11:00
machine_kexec.c powerpc: Allow mem=x cmdline to work with 4G+ 2009-05-15 16:43:41 +10:00
Makefile Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 11:29:32 -07:00
misc_32.S powerpc/44x: Support 16K/64K base page sizes on 44x 2008-12-29 09:53:25 +11:00
misc_64.S powerpc: Move VMX and VSX asm code to vector.S 2009-06-09 16:46:25 +10:00
misc.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
module_32.c powerpc/ppc32: ftrace, dynamic ftrace to handle modules 2008-11-20 10:52:53 -08:00
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpc7450-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c
of_device.c powerpc/of: Fix usage of dev_set_name() in of_device_alloc() 2009-06-26 16:55:35 +10:00
of_platform.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
paca.c powerpc: Separate PACA fields for server CPUs 2009-06-09 16:47:38 +10:00
pci_32.c powerpc/pci: Remove redundant pcnet32 fixup 2009-05-21 15:44:24 +10:00
pci_64.c powerpc: Fix warning when printing a resource_size_t 2009-06-09 16:47:41 +10:00
pci_dn.c powerpc/pci: Move pseries code into pseries platform specific area 2009-05-21 15:44:24 +10:00
pci-common.c powerpc/pci: Fix annotation of pcibios_claim_one_bus 2009-06-02 11:09:12 +10:00
perf_counter.c perf_counter: powerpc: Make powerpc perf_counter code safe for 32-bit kernels 2009-06-18 11:11:46 +02:00
pmc.c
power4-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
power5-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
power5+-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
power6-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
power7-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
ppc32.h powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ppc970-pmu.c perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it 2009-08-06 13:55:09 +02:00
ppc_ksyms.c powerpc: Export cacheable_memzero as its now used in a driver 2009-01-08 16:25:17 +11:00
ppc_save_regs.S powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
proc_ppc64.c
process.c powerpc: Fix output from show_regs 2009-06-26 14:37:24 +10:00
prom_init_check.sh powerpc: Print linux_banner in prom_init 2009-03-11 17:11:33 +11:00
prom_init.c edac: cpc925 MC platform device setup 2009-06-18 13:03:57 -07:00
prom_parse.c powerpc: Fix of_node_put() exit path in of_irq_map_one() 2009-04-20 12:18:43 -06:00
prom.c powerpc: Shield code specific to 64-bit server processors 2009-06-09 16:47:38 +10:00
ptrace32.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
ptrace.c powerpc: Fix booke user_disable_single_step() 2009-07-15 17:41:45 +10:00
reloc_64.S powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
rtas_flash.c proc 2/2: remove struct proc_dir_entry::owner 2009-03-31 01:14:44 +04:00
rtas_pci.c powerpc/pci: Clean up direct access to sysdata by RTAS 2009-05-21 15:44:23 +10:00
rtas-proc.c
rtas-rtc.c
rtas.c powerpc: Use one common impl. of RTAS timebase sync and use raw spinlock 2009-06-26 16:55:25 +10:00
setup_32.c powerpc: Add irqtrace support for 32-bit powerpc 2009-06-26 14:37:27 +10:00
setup_64.c powerpc: Fix warning in setup_64.c when CONFIG_RELOCATABLE=y 2009-06-15 13:26:21 +10:00
setup-common.c powerpc: Remove duplicated #include's 2009-04-07 15:18:58 +10:00
setup.h
signal_32.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal_64.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c powerpc: Silence software timebase sync 2008-11-05 22:08:28 +11:00
smp.c powerpc/pmac: Fix issues with PowerMac "PowerSurge" SMP 2009-06-26 14:37:24 +10:00
softemu8xx.c Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
stacktrace.c powerpc: Removed duplicated include in stacktrace.c 2008-07-28 16:30:47 +10:00
suspend.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
swsusp_32.S powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
swsusp_64.c
swsusp_asm64.S powerpc: Fix 64-bit hibernation with 64k pages 2008-10-07 14:26:20 +11:00
swsusp.c powerpc/mm: Split mmu_context handling 2008-12-21 14:21:15 +11:00
sys_ppc32.c compat: generic compat get/settimeofday 2008-10-16 11:21:33 -07:00
syscalls.c powerpc/mm: Add Strong Access Ordering support 2008-07-09 16:30:45 +10:00
sysfs.c powerpc: Fix bugs introduced by sysfs changes 2009-03-27 16:58:24 +11:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c
time.c perf_counter: powerpc: Enable use of software counters on 32-bit powerpc 2009-06-18 11:11:44 +02:00
traps.c powerpc: Add PTRACE_SINGLEBLOCK support 2009-06-09 13:29:25 +10:00
udbg_16550.c powerpc/440: Fix warning early debug code 2009-06-26 16:55:35 +10:00
udbg.c powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF 2009-03-11 17:11:34 +11:00
vdso.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
vecemu.c
vector.S powerpc: Fix another bug in move of altivec code to vector.S 2009-07-15 17:41:46 +10:00
vio.c workqueue: add to_delayed_work() helper function 2009-04-02 19:04:50 -07:00
vmlinux.lds.S powerpc: Explicit alignment for .data.cacheline_aligned 2009-05-18 15:19:05 +10:00