Jiri Olsa 01e71c2182 perf: Return proper values for user stack errors ...

commit 78b562fbfa upstream.

Return immediately when we find issue in the user stack checks. The
error value could get overwritten by following check for
PERF_SAMPLE_REGS_INTR.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: syzkaller-bugs@googlegroups.com
Cc: x86@kernel.org
Fixes: 60e2364e60 ("perf: Add ability to sample machine state on interrupt")
Link: http://lkml.kernel.org/r/20180415092352.12403-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-26 11:02:22 +02:00

..

callchain.c

perf: Fix sample_max_stack maximum check

2018-04-26 11:02:22 +02:00

core.c

perf: Return proper values for user stack errors

2018-04-26 11:02:22 +02:00

hw_breakpoint.c

perf/hwbp: Simplify the perf-hwbp code, fix documentation

2018-04-08 14:26:27 +02:00

internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ring_buffer.c

perf/aux: Only update ->aux_wakeup in non-overwrite mode

2017-09-29 10:06:45 +02:00

uprobes.c

mm, uprobes: fix multiple free of ->uprobes_state.xol_area

2017-08-31 16:33:15 -07:00