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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-09-15 14:45:53 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-10-16 23:59:58 +0200 |
| commit | 638d5bb8167c2c88552257d5af23f7f65ab4defd (patch) | |
| tree | 736f9e4fab8d5c086a889dadebe7d6d02f4bf0a5 | |
| parent | 745647e7a2ae399f7f70aca47827e62c99c893b5 (diff) | |
| download | linux-638d5bb8167c2c88552257d5af23f7f65ab4defd.tar.bz2 | |
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>
| -rw-r--r-- | drivers/ieee1394/nodemgr.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 11712a3ae0ad..ec8edd2f19de 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"); } } |