From df58d0359581bbd4ee741406d81e69456c684f9d Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 7 Nov 2006 21:01:30 +0000 Subject: [PATCH] [ARM] Fix "apm -s" command hang Fix an apparant hang with the "apm -s" command. We omitted to wake up this process once resume had completed. Signed-off-by: Russell King --- arch/arm/kernel/apm.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c index bbe98e3b860b..845af0bc1108 100644 --- a/arch/arm/kernel/apm.c +++ b/arch/arm/kernel/apm.c @@ -340,6 +340,7 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) wait_event(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); } else { + as->suspend_state = SUSPEND_WAIT; up(&state_lock); /* @@ -349,8 +350,14 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) * acknowledged. */ err = queue_suspend_event(APM_USER_SUSPEND, as); - if (err < 0) + if (err < 0) { + /* + * Avoid taking the lock here - this + * should be fine. + */ + as->suspend_state = SUSPEND_NONE; break; + } if (err > 0) apm_suspend(); -- 2.20.1