diff options
| -rw-r--r-- | kernel/printk/printk.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index f900dc9f6822..02d6b6d28796 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1857,10 +1857,16 @@ asmlinkage __visible int printk(const char *fmt, ...) int r; va_start(args, fmt); - preempt_disable(); + + /* + * If a caller overrides the per_cpu printk_func, then it needs + * to disable preemption when calling printk(). Otherwise + * the printk_func should be set to the default. No need to + * disable preemption here. + */ vprintk_func = this_cpu_read(printk_func); r = vprintk_func(fmt, args); - preempt_enable(); + va_end(args); return r; |