diff options
| author | David S. Miller <davem@davemloft.net> | 2013-12-18 16:42:06 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-18 16:42:06 -0500 |
| commit | 143c9054949436cb05e468439dc5e46231f33d09 (patch) | |
| tree | c2e972d8188fb1b36368e9acb5b6b59466c9d903 /arch/arm/kernel/process.c | |
| parent | 0b6807034791160d5e584138943d2daea765436d (diff) | |
| parent | 35eecf052250f663f07a4cded7d3503fd1b50729 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/intel/i40e/i40e_main.c
drivers/net/macvtap.c
Both minor merge hassles, simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm/kernel/process.c')
| -rw-r--r-- | arch/arm/kernel/process.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 94f6b05f9e24..92f7b15dd221 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -404,6 +404,7 @@ EXPORT_SYMBOL(dump_fpu); unsigned long get_wchan(struct task_struct *p) { struct stackframe frame; + unsigned long stack_page; int count = 0; if (!p || p == current || p->state == TASK_RUNNING) return 0; @@ -412,9 +413,11 @@ unsigned long get_wchan(struct task_struct *p) frame.sp = thread_saved_sp(p); frame.lr = 0; /* recovered from the stack */ frame.pc = thread_saved_pc(p); + stack_page = (unsigned long)task_stack_page(p); do { - int ret = unwind_frame(&frame); - if (ret < 0) + if (frame.sp < stack_page || + frame.sp >= stack_page + THREAD_SIZE || + unwind_frame(&frame) < 0) return 0; if (!in_sched_functions(frame.pc)) return frame.pc; |