From b886340e67df395261a4b863f65bf7c136d8c239 Mon Sep 17 00:00:00 2001 From: GalaIO Date: Thu, 10 Sep 2015 22:59:51 +0800 Subject: [PATCH] open and then get the new device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit in rt_console_set_device, open new device first and get the new device to _console_device. 我在编写程序时，在device驱动中打印log，但是使用rt_kprintf时，如果_console_device存在非空，那就执行驱动的write函数，但是这是device还没有初始化成功，但是已经提前给_console_device赋值，导致了程序无故fault，以上述修改可避开这样的矛盾。 --- src/kservice.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/kservice.c b/src/kservice.c index 0e15610e51..f18f792dda 100644 --- a/src/kservice.c +++ b/src/kservice.c @@ -1073,8 +1073,8 @@ rt_device_t rt_console_set_device(const char *name) } /* set new console device */ + rt_device_open(new, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_STREAM); _console_device = new; - rt_device_open(_console_device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_STREAM); } return old;