PWN-Hunter/android_kernel_xiaomi_sdm845
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[PATCH] genetlink: don't touch module ref count

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Increasing the module ref count at registration will block the module from
ever being unloaded. In fact, genetlink should not care about the owner at
all. This patch removes the owner field from the struct registered with
genetlink.

Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Per Liden 2006-01-13 13:06:40 -08:00 committed by David S. Miller
parent 2e4e6a17af
commit 23b0ca5bf5
3 changed files with 0 additions and 9 deletions
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1
include/net/genetlink.h
View File

@ -22,7 +22,6 @@ struct genl_family
char name[GENL_NAMSIZ];
unsigned int version;
unsigned int maxattr;
struct module * owner;
struct nlattr ** attrbuf; /* private */
struct list_head ops_list; /* private */
struct list_head family_list; /* private */

7
net/netlink/genetlink.c
View File

@ -222,11 +222,6 @@ int genl_register_family(struct genl_family *family)
goto errout_locked;
}
if (!try_module_get(family->owner)) {
err = -EBUSY;
goto errout_locked;
}
if (family->id == GENL_ID_GENERATE) {
u16 newid = genl_generate_id();
@ -283,7 +278,6 @@ int genl_unregister_family(struct genl_family *family)
INIT_LIST_HEAD(&family->ops_list);
genl_unlock();
module_put(family->owner);
kfree(family->attrbuf);
genl_ctrl_event(CTRL_CMD_DELFAMILY, family);
return 0;
@ -535,7 +529,6 @@ static struct genl_family genl_ctrl = {
.name = "nlctrl",
.version = 0x1,
.maxattr = CTRL_ATTR_MAX,
.owner = THIS_MODULE,
};
static int __init genl_init(void)

1
net/tipc/netlink.c
View File

@ -72,7 +72,6 @@ static struct genl_family family = {
.version = TIPC_GENL_VERSION,
.hdrsize = TIPC_GENL_HDRLEN,
.maxattr = 0,
.owner = THIS_MODULE,
};
static struct genl_ops ops = {