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[PATCH] swsusp: add check for suspension of X-controlled devices

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It is unsafe to suspend devices if the hardware is controlled by X.  Add an
extra check to prevent this from happening.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Rafael J. Wysocki
2006-03-23 03:00:07 -08:00
committed by Linus Torvalds
parent e4e4d66556
commit ff4da2e262
3 changed files with 17 additions and 1 deletions
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8
drivers/char/vt.c
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@@ -3234,6 +3234,14 @@ void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org)
}
}
int is_console_suspend_safe(void)
{
/* It is unsafe to suspend devices while X has control of the
* hardware. Make sure we are running on a kernel-controlled console.
*/
return vc_cons[fg_console].d->vc_mode == KD_TEXT;
}
/*
* Visible symbols for modules
*/