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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-02 12:17:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-02 12:17:05 -0700 |
| commit | 625a3b6057e86d5079976db5648bd42289c8b6cc (patch) | |
| tree | bfdc13d0060375297927d63aa184dea75c55ff88 /arch/arm/kernel/perf_event.c | |
| parent | c7bcecbe98fe29e87ac7d01c70c5998806e0989f (diff) | |
| parent | e8bf8df9c296b782c32236c6a5893aec301320c7 (diff) | |
Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: (47 commits)
CLKDEV: Fix clkdev return value for NULL clk case
ARM: 6891/1: prevent heap corruption in OABI semtimedop
ARM: kprobes: Tidy-up kprobes-decode.c
ARM: kprobes: Add emulation of hint instructions like NOP and WFI
ARM: kprobes: Add emulation of SBFX, UBFX, BFI and BFC instructions
ARM: kprobes: Add emulation of MOVW and MOVT instructions
ARM: kprobes: Reject probing of undefined data processing instructions
ARM: kprobes: Remove redundant code in space_1111
ARM: kprobes: Fix emulation of PLD instructions
ARM: kprobes: Reject probing of SETEND instructions
ARM: kprobes: Consolidate stub decoding functions
ARM: kprobes: Reject probing of all coprocessor instructions
ARM: kprobes: Fix emulation of USAD8 instructions
ARM: kprobes: Fix emulation of SMUAD, SMUSD and SMMUL instructions
ARM: kprobes: Fix emulation of SXTB16, SXTB, SXTH, UXTB16, UXTB and UXTH instructions
ARM: kprobes: Reject probing of undefined media instructions
ARM: kprobes: Add emulation of RBIT instruction
ARM: kprobes: Reject probing of LDRB instructions which load PC
ARM: kprobes: Fix emulation of LDRD and STRD instructions
ARM: kprobes: Reject probing of LDR/STR instructions which update PC unpredictably
...
Diffstat (limited to 'arch/arm/kernel/perf_event.c')
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 979da3947f4..139e3c82736 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -746,7 +746,8 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) tail = (struct frame_tail __user *)regs->ARM_fp - 1; - while (tail && !((unsigned long)tail & 0x3)) + while ((entry->nr < PERF_MAX_STACK_DEPTH) && + tail && !((unsigned long)tail & 0x3)) tail = user_backtrace(tail, entry); } |