diff options
| -rw-r--r-- | arch/x86/include/asm/stacktrace.h | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/dumpstack.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/dumpstack_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/dumpstack_64.c | 2 |
4 files changed, 7 insertions, 5 deletions
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index 780a83efcfd3..ed2be1b5ada8 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -94,7 +94,7 @@ get_frame_pointer(struct task_struct *task, struct pt_regs *regs) if (regs) return (unsigned long *)regs->bp; - if (!task || task == current) + if (task == current) return __builtin_frame_address(0); return (unsigned long *)((struct inactive_task_frame *)task->thread.sp)->bp; @@ -113,7 +113,7 @@ get_stack_pointer(struct task_struct *task, struct pt_regs *regs) if (regs) return (unsigned long *)kernel_stack_pointer(regs); - if (!task || task == current) + if (task == current) return __builtin_frame_address(0); return (unsigned long *)task->thread.sp; diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index aa208e565b03..e0648f755158 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -175,11 +175,13 @@ void show_stack(struct task_struct *task, unsigned long *sp) { unsigned long bp = 0; + task = task ? : current; + /* * Stack frames below this one aren't interesting. Don't show them * if we're printing for %current. */ - if (!sp && (!task || task == current)) { + if (!sp && task == current) { sp = get_stack_pointer(current, NULL); bp = (unsigned long)get_frame_pointer(current, NULL); } diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 122f37d7bb7e..4ff000811e03 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -205,7 +205,7 @@ void show_regs(struct pt_regs *regs) u8 *ip; pr_emerg("Stack:\n"); - show_stack_log_lvl(NULL, regs, NULL, 0, KERN_EMERG); + show_stack_log_lvl(current, regs, NULL, 0, KERN_EMERG); pr_emerg("Code:"); diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c index 16c0d5f89b5e..008a29837cab 100644 --- a/arch/x86/kernel/dumpstack_64.c +++ b/arch/x86/kernel/dumpstack_64.c @@ -278,7 +278,7 @@ void show_regs(struct pt_regs *regs) u8 *ip; printk(KERN_DEFAULT "Stack:\n"); - show_stack_log_lvl(NULL, regs, NULL, 0, KERN_DEFAULT); + show_stack_log_lvl(current, regs, NULL, 0, KERN_DEFAULT); printk(KERN_DEFAULT "Code: "); |