]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf stat: Fix error check for bpf_program__attach
authorNamhyung Kim <namhyung@kernel.org>
Thu, 27 May 2021 22:00:52 +0000 (15:00 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 28 May 2021 00:51:21 +0000 (21:51 -0300)
commitc673b7f59e940061467200f1746820a178444bd0
treee1bf0ddbed1a7da7f797c8e7eaef1c34caeae195
parentc59870e2110e1229a6e4b2457aece6ffe8d68d99
perf stat: Fix error check for bpf_program__attach

It seems the bpf_program__attach() returns a negative error code instead
of a NULL pointer in case of error.

Fixes: 7fac83aaf2ee ("perf stat: Introduce 'bperf' to share hardware PMCs with BPF")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Link: http://lore.kernel.org/lkml/20210527220052.1657578-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/bpf_counter.c