[NET] sem2mutex: net/

[mirror_ubuntu-jammy-kernel.git] / net / ipv4 / ipcomp.c

diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index d64e2ec8da7b454f0bd6bc273c9b4fde707fcb9e..c95020f7c81e38a2bdb0672fc7ecf5660c2f78d6 100644 (file)
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -24,6 +24,7 @@
 #include <linux/list.h>
 #include <linux/vmalloc.h>
 #include <linux/rtnetlink.h>
+#include <linux/mutex.h>
 #include <net/ip.h>
 #include <net/xfrm.h>
 #include <net/icmp.h>
@@ -36,7 +37,7 @@ struct ipcomp_tfms {
        int users;
 };
 
-static DECLARE_MUTEX(ipcomp_resource_sem);
+static DEFINE_MUTEX(ipcomp_resource_mutex);
 static void **ipcomp_scratches;
 static int ipcomp_scratch_users;
 static LIST_HEAD(ipcomp_tfms_list);
@@ -253,7 +254,7 @@ error:
 }
 
 /*
- * Must be protected by xfrm_cfg_sem.  State and tunnel user references are
+ * Must be protected by xfrm_cfg_mutex.  State and tunnel user references are
  * always incremented on success.
  */
 static int ipcomp_tunnel_attach(struct xfrm_state *x)
@@ -411,9 +412,9 @@ static void ipcomp_destroy(struct xfrm_state *x)
        if (!ipcd)
                return;
        xfrm_state_delete_tunnel(x);
-       down(&ipcomp_resource_sem);
+       mutex_lock(&ipcomp_resource_mutex);
        ipcomp_free_data(ipcd);
-       up(&ipcomp_resource_sem);
+       mutex_unlock(&ipcomp_resource_mutex);
        kfree(ipcd);
 }
 
@@ -440,14 +441,14 @@ static int ipcomp_init_state(struct xfrm_state *x)
        if (x->props.mode)
                x->props.header_len += sizeof(struct iphdr);
 
-       down(&ipcomp_resource_sem);
+       mutex_lock(&ipcomp_resource_mutex);
        if (!ipcomp_alloc_scratches())
                goto error;
 
        ipcd->tfms = ipcomp_alloc_tfms(x->calg->alg_name);
        if (!ipcd->tfms)
                goto error;
-       up(&ipcomp_resource_sem);
+       mutex_unlock(&ipcomp_resource_mutex);
 
        if (x->props.mode) {
                err = ipcomp_tunnel_attach(x);
@@ -464,10 +465,10 @@ out:
        return err;
 
 error_tunnel:
-       down(&ipcomp_resource_sem);
+       mutex_lock(&ipcomp_resource_mutex);
 error:
        ipcomp_free_data(ipcd);
-       up(&ipcomp_resource_sem);
+       mutex_unlock(&ipcomp_resource_mutex);
        kfree(ipcd);
        goto out;
 }