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system/uorb: Solve the problem of wrong use of return value

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Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
This commit is contained in:
dongjiuzhu1 2023-07-12 18:04:57 +08:00 committed by Xiang Xiao
parent 963d0680bd
commit 718fcfac1e
1 changed files with 4 additions and 2 deletions
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6
system/uorb/uORB/uORB.c
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@ -58,6 +58,7 @@ static int orb_advsub_open(FAR const struct orb_metadata *meta, int flags,
char path[ORB_PATH_MAX];
int fd;
int ret;
int err;
snprintf(path, ORB_PATH_MAX, ORB_SENSOR_PATH"%s%d", meta->o_name,
instance);
@ -83,8 +84,9 @@ static int orb_advsub_open(FAR const struct orb_metadata *meta, int flags,
/* Register new device node */
ret = ioctl(fd, SNIOC_REGISTER, (unsigned long)(uintptr_t)&reginfo);
err = errno;
close(fd);
if (ret < 0 && ret != -EEXIST)
if (ret < 0 && err != EEXIST)
{
return ret;
}
@ -95,7 +97,7 @@ static int orb_advsub_open(FAR const struct orb_metadata *meta, int flags,
return fd;
}
if (ret != -EEXIST)
if (err != EEXIST)
{
ioctl(fd, SNIOC_SET_USERPRIV, (unsigned long)(uintptr_t)meta);
}