PM / Hibernate: Fix PM_POST_* notification with user-space suspend

commit 1497dd1d29c6a53fcd3c80f7ac8d0e0239e7389e upstream.

The user-space hibernation sends a wrong notification after the image
restoration because of thinko for the file flag check.  RDONLY
corresponds to hibernation and WRONLY to restoration, confusingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>

diff --git a/kernel/power/user.c b/kernel/power/user.c
index a6332a3132620b4563e3be8a0fbfb9639b1e5405..245339998a95809b0ba67471d1d89865d2254f28 100644 (file)
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -129,7 +129,7 @@ static int snapshot_release(struct inode *inode, struct file *filp)
        free_all_swap_pages(data->swap);
        if (data->frozen)
                thaw_processes();
-       pm_notifier_call_chain(data->mode == O_WRONLY ?
+       pm_notifier_call_chain(data->mode == O_RDONLY ?
                        PM_POST_HIBERNATION : PM_POST_RESTORE);
        atomic_inc(&snapshot_device_available);