s390/cio: use while (i--) pattern to clean up

Use more natural while (i--) pattern to clean up allocated resources.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Link: https://lore.kernel.org/r/20240222134501.236871-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

Author: andy-shev

drivers/s390/cio/ccwgroup.c

@@ -240,7 +240,7 @@ static int __ccwgroup_create_symlinks(struct ccwgroup_device *gdev)
 		rc = sysfs_create_link(&gdev->cdev[i]->dev.kobj,
 				       &gdev->dev.kobj, "group_device");
 		if (rc) {
-			for (--i; i >= 0; i--)
+			while (i--)
 				sysfs_remove_link(&gdev->cdev[i]->dev.kobj,
 						  "group_device");
 			return rc;
@@ -251,7 +251,7 @@ static int __ccwgroup_create_symlinks(struct ccwgroup_device *gdev)
 		rc = sysfs_create_link(&gdev->dev.kobj,
 				       &gdev->cdev[i]->dev.kobj, str);
 		if (rc) {
-			for (--i; i >= 0; i--) {
+			while (i--) {
 				sprintf(str, "cdev%d", i);
 				sysfs_remove_link(&gdev->dev.kobj, str);
 			}

drivers/s390/cio/chsc.c

@@ -844,7 +844,7 @@ chsc_add_cmg_attr(struct channel_subsystem *css)
 	}
 	return ret;
 cleanup:
-	for (--i; i >= 0; i--) {
+	while (i--) {
 		if (!css->chps[i])
 			continue;
 		chp_remove_cmg_attr(css->chps[i]);