[3/4] ntdll: Properly test line status register for TIOCSER_TEMT bit.
Dmitry Timoshkov
dmitry at baikal.ru
Tue Aug 27 03:41:10 CDT 2013
---
dlls/ntdll/serial.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/dlls/ntdll/serial.c b/dlls/ntdll/serial.c
index bb025cf..7f56cb5 100644
--- a/dlls/ntdll/serial.c
+++ b/dlls/ntdll/serial.c
@@ -804,6 +804,8 @@ typedef struct async_commio
*/
static NTSTATUS get_irq_info(int fd, serial_irq_info *irq_info)
{
+ int out;
+
#if defined (HAVE_LINUX_SERIAL_H) && defined (TIOCGICOUNT)
struct serial_icounter_struct einfo;
if (!ioctl(fd, TIOCGICOUNT, &einfo))
@@ -828,8 +830,11 @@ static NTSTATUS get_irq_info(int fd, serial_irq_info *irq_info)
irq_info->temt = 0;
/* Generate a single TX_TXEMPTY event when the TX Buffer turns empty*/
#ifdef TIOCSERGETLSR /* prefer to log the state TIOCSERGETLSR */
- if (!ioctl(fd, TIOCSERGETLSR, &irq_info->temt))
+ if (!ioctl(fd, TIOCSERGETLSR, &out))
+ {
+ irq_info->temt = (out & TIOCSER_TEMT) != 0;
return STATUS_SUCCESS;
+ }
TRACE("TIOCSERGETLSR err %s\n", strerror(errno));
#endif
--
1.8.3.4
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