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Don't clobber errno if we are not going to fail.

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This commit is contained in:
Dmitrij Tejblum 1998-09-13 15:33:42 +00:00
parent d3459488ae
commit 8ab6008b79
1 changed files with 4 additions and 1 deletions
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5
lib/libc_r/uthread/uthread_fd.c
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@ -29,7 +29,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: uthread_fd.c,v 1.7 1998/05/27 00:41:22 jb Exp $
* $Id: uthread_fd.c,v 1.8 1998/06/09 23:16:53 jb Exp $
*
*/
#include <errno.h>
@ -55,6 +55,7 @@ _thread_fd_table_init(int fd)
{
int ret = 0;
struct fd_table_entry *entry;
int saved_errno;
/* Check if the file descriptor is out of range: */
if (fd < 0 || fd >= _thread_dtablesize) {
@ -116,8 +117,10 @@ _thread_fd_table_init(int fd)
* not support non-blocking calls, or if the
* driver is naturally non-blocking.
*/
saved_errno = errno;
_thread_sys_fcntl(fd, F_SETFL,
entry->flags | O_NONBLOCK);
errno = saved_errno;
/* Lock the file descriptor table: */
_SPINLOCK(&fd_table_lock);