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| author | Ross Zwisler <ross.zwisler@linux.intel.com> | 2018-02-03 00:26:10 -0700 |
|---|---|---|
| committer | Ross Zwisler <ross.zwisler@linux.intel.com> | 2018-02-03 00:26:10 -0700 |
| commit | d121f07691415df824e6b60520f782f6d13b3c81 (patch) | |
| tree | 422ad3cc6fd631604fef4e469e49bacba8202e52 /arch/x86/kernel/stacktrace.c | |
| parent | 59858d3d54cfad1f8db67c2c07e4dd33bb6ed955 (diff) | |
| parent | 569d0365f571fa6421a5c80bc30d1b2cdab857fe (diff) | |
Merge branch 'for-4.16/dax' into libnvdimm-for-next
Diffstat (limited to 'arch/x86/kernel/stacktrace.c')
| -rw-r--r-- | arch/x86/kernel/stacktrace.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 77835bc021c7..20161ef53537 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -164,8 +164,12 @@ int save_stack_trace_tsk_reliable(struct task_struct *tsk, { int ret; + /* + * If the task doesn't have a stack (e.g., a zombie), the stack is + * "reliably" empty. + */ if (!try_get_task_stack(tsk)) - return -EINVAL; + return 0; ret = __save_stack_trace_reliable(trace, tsk); |