ntdll: Ignore ioctl(TIOCGICOUNT) failures.

Most USB-serial Linux drivers don't support it.

ntdll: Ignore ioctl(TIOCGICOUNT) failures.
1202c14e · Dmitry Timoshkov · Alexandre Julliard · 8e56b833 · 1202c14e
Commit 1202c14e authored Aug 27, 2013 by Dmitry Timoshkov Committed by Alexandre Julliard Aug 27, 2013
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serial.c dlls/ntdll/serial.c +1 -2

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--- a/dlls/ntdll/serial.c
+++ b/dlls/ntdll/serial.c
@@ -820,12 +820,11 @@ static NTSTATUS get_irq_info(int fd, serial_irq_info *irq_info)
    {
        TRACE("TIOCGICOUNT err %s\n", strerror(errno));
        memset(irq_info,0, sizeof(serial_irq_info));
-        return FILE_GetNtStatus();
    }
 #else
    memset(irq_info,0, sizeof(serial_irq_info));
-    return STATUS_NOT_IMPLEMENTED;
 #endif
+
    irq_info->temt = 0;
    /* Generate a single TX_TXEMPTY event when the TX Buffer turns empty*/
 #ifdef TIOCSERGETLSR  /* prefer to log the state TIOCSERGETLSR */