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[PATCH] hvc_console: MAGIC_SYSRQ should only be on console channel 

Guard the MAGIC_SYSRQ ^O to be just on the console channel.  Make the other
channels more transparent.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Milton Miller 2005-07-07 17:56:19 -07:00 committed by Linus Torvalds
parent 8b67f8c177
commit 2b9e0bac94
1 changed files with 11 additions and 8 deletions
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19
drivers/char/hvc_console.c
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@ -584,14 +584,17 @@ static int hvc_poll(struct hvc_struct *hp)
}
for (i = 0; i < n; ++i) {
#ifdef CONFIG_MAGIC_SYSRQ
/* Handle the SysRq Hack */
if (buf[i] == '\x0f') { /* ^O -- should support a sequence */
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
handle_sysrq(buf[i], NULL, tty);
sysrq_pressed = 0;
continue;
if (hp->index == hvc_con_driver.index) {
/* Handle the SysRq Hack */
/* XXX should support a sequence */
if (buf[i] == '\x0f') { /* ^O */
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
handle_sysrq(buf[i], NULL, tty);
sysrq_pressed = 0;
continue;
}
}
#endif /* CONFIG_MAGIC_SYSRQ */
tty_insert_flip_char(tty, buf[i], 0);