diff options
Diffstat (limited to 'kernel/power/snapshot.c')
| -rw-r--r-- | kernel/power/snapshot.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 6e1321837c66..a564650734dc 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -2855,6 +2855,17 @@ int snapshot_write_finalize(struct snapshot_handle *handle) { int error; + /* + * Call snapshot_write_next() to drain any trailing zero pages, + * but make sure we're in the data page region first. + * This function can return PAGE_SIZE if the kernel was expecting + * another copy page. Return -ENODATA in that situation. + */ + if (handle->cur > nr_meta_pages + 1) { + error = snapshot_write_next(handle); + if (error) + return error > 0 ? -ENODATA : error; + } copy_last_highmem_page(); error = hibernate_restore_protect_page(handle->buffer); /* Do that only if we have loaded the image entirely */ |