[PATCH 63/79] tty: Power: fix suspend vt regression

From: Greg Kroah-Hartman
Date: Sat Sep 19 2009 - 17:48:15 EST


From: Jiri Slaby <jirislaby@xxxxxxxxx>

vt_waitactive no longer accepts console parameter as console-1
since commit "vt: add an event interface". It expects console
number directly (as viewed by userspace -- counting from 1).

Fix a deadlock suspend regression by redefining adding one
to vt in vt_move_to_console.

Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/char/vt_ioctl.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 30b5d12..29c651a 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -1757,7 +1757,7 @@ int vt_move_to_console(unsigned int vt, int alloc)
return -EIO;
}
release_console_sem();
- if (vt_waitactive(vt)) {
+ if (vt_waitactive(vt + 1)) {
pr_debug("Suspend: Can't switch VCs.");
return -EINTR;
}
--
1.6.4.2

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