[PATCH] hvc_console: MAGIC_SYSRQ should only be on console channel (2b9e0bac) · Commits · 戴 / test

Guard the MAGIC_SYSRQ ^O to be just on the console channel. Make the other channels more transparent. Signed-off-by:

drivers/char/hvc_console.c

+11 −8

Original line number	Diff line number	Diff line
		@@ -584,8 +584,10 @@ static int hvc_poll(struct hvc_struct *hp)
		}
		for (i = 0; i < n; ++i) {
		#ifdef CONFIG_MAGIC_SYSRQ
		if (hp->index == hvc_con_driver.index) {
		/* Handle the SysRq Hack */
		if (buf[i] == '\x0f') { /* ^O -- should support a sequence */
		/* XXX should support a sequence */
		if (buf[i] == '\x0f') { /* ^O */
		sysrq_pressed = 1;
		continue;
		} else if (sysrq_pressed) {
		@@ -593,6 +595,7 @@ static int hvc_poll(struct hvc_struct *hp)
		sysrq_pressed = 0;
		continue;
		}
		}
		#endif /* CONFIG_MAGIC_SYSRQ */
		tty_insert_flip_char(tty, buf[i], 0);
		}