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authorStefan Richter <stefanr@s5r6.in-berlin.de>2007-09-15 14:45:53 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-10-16 23:59:58 +0200
commit638d5bb8167c2c88552257d5af23f7f65ab4defd (patch)
tree736f9e4fab8d5c086a889dadebe7d6d02f4bf0a5 /drivers/ieee1394/nodemgr.c
parent745647e7a2ae399f7f70aca47827e62c99c893b5 (diff)
ieee1394: nodemgr: fix leak of struct csr1212_keyval
csr1212_keep_keyval(kv) in nodemgr_process_root_directory was unbalanced if ne->vendor_name_kv already exists. This happens for example if eth1394 or raw1394 modify the local config ROM and it is parsed again. As a bonus, the attempt to add the vendor_name_kv sysfs attribute when it already exists is now fixed for good. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394/nodemgr.c')
-rw-r--r--drivers/ieee1394/nodemgr.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 11712a3ae0a..ec8edd2f19d 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1112,7 +1112,7 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
{
unsigned int ud_id = 0;
struct csr1212_dentry *dentry;
- struct csr1212_keyval *kv;
+ struct csr1212_keyval *kv, *vendor_name_kv = NULL;
u8 last_key_id = 0;
ne->needs_probe = 0;
@@ -1139,8 +1139,8 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH(kv) == 0 &&
CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET(kv) == 0 &&
CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE(kv) == 0) {
- ne->vendor_name_kv = kv;
csr1212_keep_keyval(kv);
+ vendor_name_kv = kv;
}
}
break;
@@ -1149,10 +1149,13 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
}
if (ne->vendor_name_kv) {
- int error = device_create_file(&ne->device,
- &dev_attr_ne_vendor_name_kv);
-
- if (error && error != -EEXIST)
+ kv = ne->vendor_name_kv;
+ ne->vendor_name_kv = vendor_name_kv;
+ csr1212_release_keyval(kv);
+ } else if (vendor_name_kv) {
+ ne->vendor_name_kv = vendor_name_kv;
+ if (device_create_file(&ne->device,
+ &dev_attr_ne_vendor_name_kv) != 0)
HPSB_ERR("Failed to add sysfs attribute");
}
}