change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/s390/char/monwriter.c
..
..
@@ -58,22 +58,31 @@
58
58
 
59
59
 static int monwrite_diag(struct monwrite_hdr *myhdr, char *buffer, int fcn)
60
60
 {
61
-	struct appldata_product_id id;
61
+	struct appldata_parameter_list *parm_list;
62
+	struct appldata_product_id *id;
62
63
 	int rc;
63
64
 
64
-	memcpy(id.prod_nr, "LNXAPPL", 7);
65
-	id.prod_fn = myhdr->applid;
66
-	id.record_nr = myhdr->record_num;
67
-	id.version_nr = myhdr->version;
68
-	id.release_nr = myhdr->release;
69
-	id.mod_lvl = myhdr->mod_level;
70
-	rc = appldata_asm(&id, fcn, (void *) buffer, myhdr->datalen);
65
+	id = kmalloc(sizeof(*id), GFP_KERNEL);
66
+	parm_list = kmalloc(sizeof(*parm_list), GFP_KERNEL);
67
+	rc = -ENOMEM;
68
+	if (!id || !parm_list)
69
+		goto out;
70
+	memcpy(id->prod_nr, "LNXAPPL", 7);
71
+	id->prod_fn = myhdr->applid;
72
+	id->record_nr = myhdr->record_num;
73
+	id->version_nr = myhdr->version;
74
+	id->release_nr = myhdr->release;
75
+	id->mod_lvl = myhdr->mod_level;
76
+	rc = appldata_asm(parm_list, id, fcn,
77
+			  (void *) buffer, myhdr->datalen);
71
78
 	if (rc <= 0)
72
-		return rc;
79
+		goto out;
73
80
 	pr_err("Writing monitor data failed with rc=%i\n", rc);
74
-	if (rc == 5)
75
-		return -EPERM;
76
-	return -EINVAL;
81
+	rc = (rc == 5) ? -EPERM : -EINVAL;
82
+out:
83
+	kfree(id);
84
+	kfree(parm_list);
85
+	return rc;
77
86
 }
78
87
 
79
88
 static struct mon_buf *monwrite_find_hdr(struct mon_private *monpriv,