Rafael J. Wysocki 5c4dd348af Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" ... Revert commit 6efde38f07 (PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()) that introduced a NULL pointer dereference during system resume from hibernation: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 PGD b39c2067 PUD b39c1067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: <irrelevant list of modules> CPU: 1 PID: 4898 Comm: s2disk Tainted: G C 3.17-rc5-amd64 #1 Debian 3.17~rc5-1~exp1 Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011 task: ffff88023155ea40 ti: ffff8800b3b14000 task.ti: ffff8800b3b14000 RIP: 0010:[<ffffffff810a8cc1>] [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP: 0018:ffff8800b3b17ea8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800b39bab00 RCX: 0000000000000001 RDX: ffff8800b39bab10 RSI: ffff8800b39bab00 RDI: 0000000000000000 RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8800b39bab10 R11: 0000000000000246 R12: ffffea0000000000 R13: ffff880232f485a0 R14: ffff88023ac27cd8 R15: ffff880232927590 FS: 00007f406d83b700(0000) GS:ffff88023bc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000b3a62000 CR4: 00000000000007e0 Stack: ffff8800b39bab00 0000000000000010 ffff880232927590 ffffffff810acb4a ffff8800b39bab00 ffffffff811a955a ffff8800b39bab10 0000000000000000 ffff88023155f098 ffffffff81a6b8c0 ffff88023155ea40 0000000000000007 Call Trace: [<ffffffff810acb4a>] ? snapshot_release+0x2a/0xb0 [<ffffffff811a955a>] ? __fput+0xca/0x1d0 [<ffffffff81080627>] ? task_work_run+0x97/0xd0 [<ffffffff81012d89>] ? do_notify_resume+0x69/0xa0 [<ffffffff8151452a>] ? int_signal+0x12/0x17 Code: 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 54 48 8b 05 ba 62 9c 00 49 bc 00 00 00 00 00 ea ff ff 48 8b 3d a1 62 9c 00 55 53 <48> 8b 10 48 89 50 18 48 8b 52 20 48 c7 40 28 00 00 00 00 c7 40 RIP [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP <ffff8800b3b17ea8> CR2: 0000000000000000 ---[ end trace f02be86a1ec0cccb ]--- due to forbidden_pages_map being NULL in swsusp_free(). Fixes: 6efde38f07 "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" Reported-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-09-25 00:59:54 +02:00
..
autosleep.c	PM / Sleep: avoid 'autosleep' in shutdown progress	2013-07-15 01:31:37 +02:00
block_io.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
console.c	arm, pm, vmpressure: add missing slab.h includes	2014-02-03 13:24:01 -05:00
hibernate.c	PM / Sleep: Remove ftrace_stop/start() from suspend and hibernate	2014-07-17 09:45:06 -04:00
Kconfig	PM / OPP: Remove ARCH_HAS_OPP	2014-07-23 00:51:30 +02:00
main.c	Merge branches 'pm-apm' and 'pm-sleep'	2014-07-27 23:56:30 +02:00
Makefile	PM / Sleep: Add user space interface for manipulating wakeup sources, v3	2012-05-01 21:26:05 +02:00
power.h	PM / sleep: Fix test_suspend= command line option	2014-09-03 01:21:03 +02:00
poweroff.c	power/sysrq: fix inconstistent help message of sysrq key	2013-04-30 17:04:10 -07:00
process.c	PM / sleep: Fix request_firmware() error at resume	2014-07-15 14:27:29 +02:00
qos.c	PM / QoS: Introcuce latency tolerance device PM QoS type	2014-02-11 00:35:38 +01:00
snapshot.c	Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"	2014-09-25 00:59:54 +02:00
suspend_test.c	PM / sleep: Fix test_suspend= command line option	2014-09-03 01:21:03 +02:00
suspend.c	PM / sleep: Fix test_suspend= command line option	2014-09-03 01:21:03 +02:00
swap.c	PM / hibernate: fixed typo in comment	2014-06-01 00:23:07 +02:00
user.c	PM / hibernate: introduce "nohibernate" boot parameter	2014-06-16 23:29:39 +02:00
wakelock.c	PM / wakeup: Include appropriate header file in kernel/power/wakelock.c	2014-03-01 01:02:09 +01:00