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authorLen Brown <len.brown@intel.com>2007-12-06 16:51:29 -0500
committerLen Brown <len.brown@intel.com>2007-12-06 16:51:29 -0500
commit921314811be704252ad2caa8dde507d4c421ddc4 (patch)
tree14ce6f28294fecbc729ce174f312c8220ffccc53 /drivers/char
parentf7a5274d7dde0022dedfb6bca5b4438bbf30e9ce (diff)
parentcb43c54ca05c01533c45e4d3abfe8f99b7acf624 (diff)
Pull apm-freeze-fix into release branch
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/apm-emulation.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index c99e43b837f5..17d54315e146 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -295,7 +295,6 @@ static int
apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
{
struct apm_user *as = filp->private_data;
- unsigned long flags;
int err = -EINVAL;
if (!as->suser || !as->writer)
@@ -331,10 +330,16 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
* Wait for the suspend/resume to complete. If there
* are pending acknowledges, we wait here for them.
*/
- flags = current->flags;
+ freezer_do_not_count();
wait_event(apm_suspend_waitqueue,
as->suspend_state == SUSPEND_DONE);
+
+ /*
+ * Since we are waiting until the suspend is done, the
+ * try_to_freeze() in freezer_count() will not trigger
+ */
+ freezer_count();
} else {
as->suspend_state = SUSPEND_WAIT;
mutex_unlock(&state_lock);
@@ -362,14 +367,10 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
* Wait for the suspend/resume to complete. If there
* are pending acknowledges, we wait here for them.
*/
- flags = current->flags;
-
- wait_event_interruptible(apm_suspend_waitqueue,
+ wait_event_freezable(apm_suspend_waitqueue,
as->suspend_state == SUSPEND_DONE);
}
- current->flags = flags;
-
mutex_lock(&state_lock);
err = as->suspend_result;
as->suspend_state = SUSPEND_NONE;