~hc/RK356X_SDK_RELEASE.git

..	..	@@ -108,6 +108,7 @@
108	108
109	109	#include <linux/kmod.h>
110	110	#include <linux/nsproxy.h>
	111	+#include "tty.h"
111	112
112	113	#undef TTY_DEBUG_HANGUP
113	114	#ifdef TTY_DEBUG_HANGUP
..	..	@@ -941,13 +942,13 @@
941	942	return i;
942	943	}
943	944
944		-static void tty_write_unlock(struct tty_struct *tty)
	945	+void tty_write_unlock(struct tty_struct *tty)
945	946	{
946	947	mutex_unlock(&tty->atomic_write_lock);
947	948	wake_up_interruptible_poll(&tty->write_wait, EPOLLOUT);
948	949	}
949	950
950		-static int tty_write_lock(struct tty_struct *tty, int ndelay)
	951	+int tty_write_lock(struct tty_struct *tty, int ndelay)
951	952	{
952	953	if (!mutex_trylock(&tty->atomic_write_lock)) {
953	954	if (ndelay)
..	..	@@ -1237,14 +1238,16 @@
1237	1238	{
1238	1239	struct tty_struct *tty;
1239	1240
1240		- if (driver->ops->lookup)
	1241	+ if (driver->ops->lookup) {
1241	1242	if (!file)
1242	1243	tty = ERR_PTR(-EIO);
1243	1244	else
1244	1245	tty = driver->ops->lookup(driver, file, idx);
1245		- else
	1246	+ } else {
	1247	+ if (idx >= driver->num)
	1248	+ return ERR_PTR(-EINVAL);
1246	1249	tty = driver->ttys[idx];
1247		-
	1250	+ }
1248	1251	if (!IS_ERR(tty))
1249	1252	tty_kref_get(tty);
1250	1253	return tty;