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author | Rob Herring <rob.herring@calxeda.com> | 2013-11-07 10:34:46 -0600 |
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committer | Rob Herring <rob.herring@calxeda.com> | 2013-11-07 10:34:46 -0600 |
commit | b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24 (patch) | |
tree | b5fcb00387a838beb2bcf2f8ed2fd3d6d460c8ae /kernel/power/user.c | |
parent | MIPS: Netlogic: replace early_init_devtree() call (diff) | |
parent | of/irq: Fix potential buffer overflow (diff) | |
download | linux-dev-b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24.tar.xz linux-dev-b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24.zip |
Merge remote-tracking branch 'grant/devicetree/next' into for-next
Diffstat (limited to 'kernel/power/user.c')
-rw-r--r-- | kernel/power/user.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c index 72e8f4fd616d..957f06164ad1 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -39,6 +39,7 @@ static struct snapshot_data { char frozen; char ready; char platform_support; + bool free_bitmaps; } snapshot_state; atomic_t snapshot_device_available = ATOMIC_INIT(1); @@ -82,6 +83,10 @@ static int snapshot_open(struct inode *inode, struct file *filp) data->swap = -1; data->mode = O_WRONLY; error = pm_notifier_call_chain(PM_RESTORE_PREPARE); + if (!error) { + error = create_basic_memory_bitmaps(); + data->free_bitmaps = !error; + } if (error) pm_notifier_call_chain(PM_POST_RESTORE); } @@ -111,6 +116,8 @@ static int snapshot_release(struct inode *inode, struct file *filp) pm_restore_gfp_mask(); free_basic_memory_bitmaps(); thaw_processes(); + } else if (data->free_bitmaps) { + free_basic_memory_bitmaps(); } pm_notifier_call_chain(data->mode == O_RDONLY ? PM_POST_HIBERNATION : PM_POST_RESTORE); @@ -231,6 +238,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, break; pm_restore_gfp_mask(); free_basic_memory_bitmaps(); + data->free_bitmaps = false; thaw_processes(); data->frozen = 0; break; |