OpenCloudOS-Kernel/kernel/events
Jiri Olsa bfb3d7b8b9 perf: Remove superfluous allocation error check
If the get_callchain_buffers fails to allocate the buffer it will
decrease the nr_callchain_events right away.

There's no point of checking the allocation error for
nr_callchain_events > 1. Removing that check.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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: Thomas Gleixner <tglx@linutronix.de>
Cc: syzkaller-bugs@googlegroups.com
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20180415092352.12403-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-04-17 09:47:40 -03:00
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
callchain.c perf: Remove superfluous allocation error check 2018-04-17 09:47:40 -03:00
core.c perf: Return proper values for user stack errors 2018-04-17 09:47:39 -03:00
hw_breakpoint.c Merge branch 'perf/urgent' into perf/core 2018-03-29 16:03:48 +02:00
internal.h perf: Make perf_callchain function static 2018-01-08 12:33:01 -03:00
ring_buffer.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
uprobes.c uprobes: Remove now-redundant smp_read_barrier_depends() 2017-12-04 10:52:55 -08:00