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| author | David S. Miller <davem@davemloft.net> | 2017-12-05 16:44:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-05 16:44:19 +0100 |
| commit | 7cda4cee1366fae236678a5a6b124bab86b14973 (patch) | |
| tree | 180bcb2d09e3db27050658afc36d5bac88593ed5 /samples | |
| parent | rtnetlink: ipv6: convert remaining users to rtnl_register_module (diff) | |
| parent | Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (diff) | |
| download | linux-7cda4cee1366fae236678a5a6b124bab86b14973.tar.xz linux-7cda4cee1366fae236678a5a6b124bab86b14973.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Small overlapping change conflict ('net' changed a line,
'net-next' added a line right afterwards) in flexcan.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/bpf_load.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c index 522ca9252d6c..242631aa4ea2 100644 --- a/samples/bpf/bpf_load.c +++ b/samples/bpf/bpf_load.c @@ -193,8 +193,18 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size) return -1; } event_fd[prog_cnt - 1] = efd; - ioctl(efd, PERF_EVENT_IOC_ENABLE, 0); - ioctl(efd, PERF_EVENT_IOC_SET_BPF, fd); + err = ioctl(efd, PERF_EVENT_IOC_ENABLE, 0); + if (err < 0) { + printf("ioctl PERF_EVENT_IOC_ENABLE failed err %s\n", + strerror(errno)); + return -1; + } + err = ioctl(efd, PERF_EVENT_IOC_SET_BPF, fd); + if (err < 0) { + printf("ioctl PERF_EVENT_IOC_SET_BPF failed err %s\n", + strerror(errno)); + return -1; + } return 0; } |