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| author |  Jakub Kicinski <kuba@kernel.org>
| 2022-01-27 12:54:16 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org>
| 2022-01-27 12:54:16 -0800 |
| commit | 72d044e4bfa6bd9096536e2e1c62aecfe1a525e4 (patch) | |
| tree | 0e408f181f5c704ff43cd006f4643c339e04aff1 /kernel/bpf | |
| parent | ptp: replace snprintf with sysfs_emit (diff) | |
| parent | Merge tag 'net-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
| download | linux-72d044e4bfa6bd9096536e2e1c62aecfe1a525e4.tar.gz linux-72d044e4bfa6bd9096536e2e1c62aecfe1a525e4.tar.bz2 linux-72d044e4bfa6bd9096536e2e1c62aecfe1a525e4.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/stackmap.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index 49e567209c6b..22c8ae94e4c1 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -472,13 +472,14 @@ BPF_CALL_4(bpf_get_task_stack, struct task_struct *, task, void *, buf, u32, size, u64, flags) { struct pt_regs *regs; - long res; + long res = -EINVAL; if (!try_get_task_stack(task)) return -EFAULT; regs = task_pt_regs(task); - res = __bpf_get_stack(regs, task, NULL, buf, size, flags); + if (regs) + res = __bpf_get_stack(regs, task, NULL, buf, size, flags); put_task_stack(task); return res; |