s390/pai: fix attr_event_free upper limit for pai device drivers

jira LE-4018
Rebuild_History Non-Buildable kernel-5.14.0-570.37.1.el9_6
commit-author Thomas Richter <tmricht@linux.ibm.com>
commit 225d09d

When the device drivers are initialized, a sysfs directory
is created. This contains many attributes which are allocated with
kzalloc(). Should it fail, the memory for the attributes already
created is freed in attr_event_free(). Its second parameter is number
of attribute elements to delete. This parameter is off by one.
When i. e. the 10th attribute fails to get created, attributes
numbered 0 to 9 should be deleted. Currently only attributes
numbered 0 to 8 are deleted.

Fixes: 39d6233 ("s390/pai: add support for cryptography counters")
	Reported-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
	Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
	Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
	Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
(cherry picked from commit 225d09d)
	Signed-off-by: Jonathan Maple <jmaple@ciq.com>

Author: PlaidCat

arch/s390/kernel/perf_pai_crypto.c

@@ -661,7 +661,7 @@ static int __init attr_event_init(void)
 	for (i = 0; i < ARRAY_SIZE(paicrypt_ctrnames); i++) {
 		ret = attr_event_init_one(attrs, i);
 		if (ret) {
-			attr_event_free(attrs, i - 1);
+			attr_event_free(attrs, i);
 			return ret;
 		}
 	}

arch/s390/kernel/perf_pai_ext.c

@@ -615,7 +615,7 @@ static int __init attr_event_init(void)
 	for (i = 0; i < ARRAY_SIZE(paiext_ctrnames); i++) {
 		ret = attr_event_init_one(attrs, i);
 		if (ret) {
-			attr_event_free(attrs, i - 1);
+			attr_event_free(attrs, i);
 			return ret;
 		}
 	}