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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 12:54:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 12:54:49 -0700 |
| commit | 5d70f79b5ef6ea2de4f72a37b2d96e2601e40a22 (patch) | |
| tree | a0d6de0930ba83ecf4629c2e2e261f5eaa2d8f33 /drivers/oprofile/oprofile_files.c | |
| parent | 888a6f77e0418b049f83d37547c209b904d30af4 (diff) | |
| parent | 750ed158bf6c782d2813da1bca2c824365a0b777 (diff) | |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (163 commits)
tracing: Fix compile issue for trace_sched_wakeup.c
[S390] hardirq: remove pointless header file includes
[IA64] Move local_softirq_pending() definition
perf, powerpc: Fix power_pmu_event_init to not use event->ctx
ftrace: Remove recursion between recordmcount and scripts/mod/empty
jump_label: Add COND_STMT(), reducer wrappery
perf: Optimize sw events
perf: Use jump_labels to optimize the scheduler hooks
jump_label: Add atomic_t interface
jump_label: Use more consistent naming
perf, hw_breakpoint: Fix crash in hw_breakpoint creation
perf: Find task before event alloc
perf: Fix task refcount bugs
perf: Fix group moving
irq_work: Add generic hardirq context callbacks
perf_events: Fix transaction recovery in group_sched_in()
perf_events: Fix bogus AMD64 generic TLB events
perf_events: Fix bogus context time tracking
tracing: Remove parent recording in latency tracer graph options
tracing: Use one prologue for the preempt irqs off tracer function tracers
...
Diffstat (limited to 'drivers/oprofile/oprofile_files.c')
| -rw-r--r-- | drivers/oprofile/oprofile_files.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c index bbd7516e0869..ccf099e684a4 100644 --- a/drivers/oprofile/oprofile_files.c +++ b/drivers/oprofile/oprofile_files.c @@ -79,14 +79,17 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou if (*offset) return -EINVAL; + if (!oprofile_ops.backtrace) + return -EINVAL; + retval = oprofilefs_ulong_from_user(&val, buf, count); if (retval) return retval; - retval = oprofile_set_backtrace(val); - + retval = oprofile_set_ulong(&oprofile_backtrace_depth, val); if (retval) return retval; + return count; } |