Merge branch 'pm-sleep'

Merge hibernation-related fixes for 5.16-rc3. * pm-sleep: PM: hibernate: Fix snapshot partial write lengths PM: hibernate: use correct mode for swsusp_close()
vieko · Nov 26, 2021 · 7803516 · 7803516
2 parents 03c8398 + 88a5045
commit 7803516
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
@@ -693,7 +693,7 @@ static int load_image_and_restore(void)
 		goto Unlock;
 
 	error = swsusp_read(&flags);
-	swsusp_close(FMODE_READ);
+	swsusp_close(FMODE_READ | FMODE_EXCL);
 	if (!error)
 		error = hibernation_restore(flags & SF_PLATFORM_MODE);
 
@@ -983,7 +983,7 @@ static int software_resume(void)
 	/* The snapshot device should not be opened while we're running */
 	if (!hibernate_acquire()) {
 		error = -EBUSY;
-		swsusp_close(FMODE_READ);
+		swsusp_close(FMODE_READ | FMODE_EXCL);
 		goto Unlock;
 	}
 
@@ -1018,7 +1018,7 @@ static int software_resume(void)
 	pm_pr_dbg("Hibernation image not present or could not be loaded.\n");
 	return error;
  Close_Finish:
-	swsusp_close(FMODE_READ);
+	swsusp_close(FMODE_READ | FMODE_EXCL);
 	goto Finish;
 }
 

diff --git a/kernel/power/user.c b/kernel/power/user.c
@@ -177,7 +177,7 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf,
 		if (res <= 0)
 			goto unlock;
 	} else {
-		res = PAGE_SIZE - pg_offp;
+		res = PAGE_SIZE;
 	}
 
 	if (!data_of(data->handle)) {