Fixed an endless loop in tty_write_to_tty() that happened if there was not enough

space left to write a '\r\n'. This fixes bug #80 and probably bug #477, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17479 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/drivers/tty/tty.cpp

@@ -1245,7 +1245,10 @@ tty_write_to_tty(tty_cookie *sourceCookie, const void *buffer, size_t *_length,
 				// If we can't write both '\r' and '\n', we won't write either,
 				// or we would write the '\r' again.
 				if (writable < 2) {
+					// try acquiring the writer again, when enough space is available
 					bytesNeeded = 2;
+					writable = 0;
+						// make sure we're breaking out of this loop
 					continue;
 				}