From: Stefan Richter Date: Sat, 15 Sep 2007 12:45:53 +0000 (+0200) Subject: ieee1394: nodemgr: fix leak of struct csr1212_keyval X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=638d5bb8167c2c88552257d5af23f7f65ab4defd;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 --- 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"); } }