From 8246da645d4569ca8d29c6b54efefaf4c313b343 Mon Sep 17 00:00:00 2001 From: BernardXiong Date: Sun, 31 Dec 2017 14:45:43 +0800 Subject: [PATCH] [DeviceDrivers] fix the compiling warning. --- components/drivers/src/pipe.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c index 223337f81b..00630c52eb 100644 --- a/components/drivers/src/pipe.c +++ b/components/drivers/src/pipe.c @@ -360,7 +360,11 @@ rt_size_t rt_pipe_read (rt_device_t device, rt_off_t pos, void *buffer, rt_siz int read_bytes = 0; rt_pipe_t *pipe = (rt_pipe_t *)device; - if (device == RT_NULL) return -EINVAL; + if (device == RT_NULL) + { + rt_set_errno(-EINVAL); + return 0; + } if (count == 0) return 0; pbuf = (uint8_t*)buffer; @@ -384,7 +388,11 @@ rt_size_t rt_pipe_write (rt_device_t device, rt_off_t pos, const void *buffer, int write_bytes = 0; rt_pipe_t *pipe = (rt_pipe_t *)device; - if (device == RT_NULL) return -EINVAL; + if (device == RT_NULL) + { + rt_set_errno(-EINVAL); + return 0; + } if (count == 0) return 0; pbuf = (uint8_t*)buffer; -- GitLab