The patch titled
swsusp: fix error paths in snapshot_open
has been removed from the -mm tree. Its filename was
swsusp-fix-error-paths-in-snapshot_open.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: swsusp: fix error paths in snapshot_open
From: Rafael J. Wysocki <rjw@xxxxxxx>
We forget to increase device_available if there's an error in snapshot_open(),
so the snapshot device cannot be open at all after snapshot_open() has
returned an error.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/power/user.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff -puN kernel/power/user.c~swsusp-fix-error-paths-in-snapshot_open kernel/power/user.c
--- a/kernel/power/user.c~swsusp-fix-error-paths-in-snapshot_open
+++ a/kernel/power/user.c
@@ -49,12 +49,14 @@ static int snapshot_open(struct inode *i
if (!atomic_add_unless(&device_available, -1, 0))
return -EBUSY;
- if ((filp->f_flags & O_ACCMODE) == O_RDWR)
+ if ((filp->f_flags & O_ACCMODE) == O_RDWR) {
+ atomic_inc(&device_available);
return -ENOSYS;
-
- if(create_basic_memory_bitmaps())
+ }
+ if(create_basic_memory_bitmaps()) {
+ atomic_inc(&device_available);
return -ENOMEM;
-
+ }
nonseekable_open(inode, filp);
data = &snapshot_state;
filp->private_data = data;
_
Patches currently in -mm which might be from rjw@xxxxxxx are
origin.patch
swsusp-clean-up-print.patch
pm-separate-hibernation-code-from-suspend-code.patch
freezer-task-exit_state-should-be-treated-as-bolean.patch
documentation-ask-driver-writers-to-provide-pm-support.patch
workqueues-shift-kthread_bind-from-cpu_up_prepare-to-cpu_online.patch
freezer-read-pf_borrowed_mm-in-a-nonracy-way.patch
freezer-close-theoretical-race-between-refrigerator-and-thaw_tasks.patch
freezer-remove-pf_nofreeze-from-rcutorture-thread.patch
freezer-remove-pf_nofreeze-from-bluetooth-threads.patch
freezer-add-try_to_freeze-calls-to-all-kernel-threads.patch
freezer-fix-vfork-problem.patch
freezer-take-kernel_execve-into-consideration.patch
fix-pf_nofreeze-and-freezeable-race-2.patch
freezer-document-task_lock-in-thaw_process.patch
move-frozen_process-to-kernel-power-processc.patch
remvoe-kthread_bind-call-from-_cpu_down.patch
separate-freezer-from-pm-code-rev-2.patch
introduce-freezer-flags-rev-2.patch
add-suspend-related-notifications-for-cpu-hotplug.patch
add-suspend-related-notifications-for-cpu-hotplug-cleanup.patch
microcode-use-suspend-related-cpu-hotplug-notifications.patch
add-suspend-related-notifications-for-cpu-hotplug-statistics.patch
shrink_slab-handle-bad-shrinkers.patch
-
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