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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
commitd0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch)
tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /arch/s390/kernel/dumpstack.c
parente914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff)
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'arch/s390/kernel/dumpstack.c')
-rw-r--r--arch/s390/kernel/dumpstack.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 69f9908ac..6693383bc 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -78,14 +78,10 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
sp = __dump_trace(func, data, sp,
S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
S390_lowcore.async_stack + frame_size);
- if (task)
- __dump_trace(func, data, sp,
- (unsigned long)task_stack_page(task),
- (unsigned long)task_stack_page(task) + THREAD_SIZE);
- else
- __dump_trace(func, data, sp,
- S390_lowcore.thread_info,
- S390_lowcore.thread_info + THREAD_SIZE);
+ task = task ?: current;
+ __dump_trace(func, data, sp,
+ (unsigned long)task_stack_page(task),
+ (unsigned long)task_stack_page(task) + THREAD_SIZE);
}
EXPORT_SYMBOL_GPL(dump_trace);