[components/drivers] update pipe.c

Fixed stackover flow bug when create pipe->fifo
2020-04-12 11:58:33 +08:00 · 2020-04-12 11:58:33 +08:00 · ff09587d23
parent 5b300113f7
commit ff09587d23
1 changed files with 5 additions and 0 deletions
--- a/components/drivers/src/pipe.c
+++ b/components/drivers/src/pipe.c
@ -330,6 +330,11 @@ rt_err_t  rt_pipe_open (rt_device_t device, rt_uint16_t oflag)
    if (pipe->fifo == RT_NULL)
    {
        pipe->fifo = rt_ringbuffer_create(pipe->bufsz);
+        if (pipe->fifo == RT_NULL)
+        {
+            rt_mutex_release(&(pipe->lock));
+            return -RT_ENOMEM;
+        }
    }

    rt_mutex_release(&(pipe->lock));