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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2021-07-27 14:08:29 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2021-07-27 14:08:29 +0200 |
| commit | 8ee18e769dd621104fecad584c84ec3c4c9ef3fa (patch) | |
| tree | ec7db1631faeb9c5998924b29aa246cbb4a38517 /arch/riscv/kernel | |
| parent | 44379b986424b02acfa6e8c85ec5d68d89d3ccc4 (diff) | |
| parent | ff1176468d368232b684f75e82563369208bc371 (diff) | |
Merge drm/drm-fixes into drm-misc-fixesdrm-misc-fixes-2021-07-28
Backmerging to get tree to v5.14-rc3, as requested by Daniel.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'arch/riscv/kernel')
| -rw-r--r-- | arch/riscv/kernel/stacktrace.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c index ff467b98c3e3..ac7593607fa6 100644 --- a/arch/riscv/kernel/stacktrace.c +++ b/arch/riscv/kernel/stacktrace.c @@ -132,8 +132,12 @@ unsigned long get_wchan(struct task_struct *task) { unsigned long pc = 0; - if (likely(task && task != current && !task_is_running(task))) + if (likely(task && task != current && !task_is_running(task))) { + if (!try_get_task_stack(task)) + return 0; walk_stackframe(task, NULL, save_wchan, &pc); + put_task_stack(task); + } return pc; } |