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path: root/fs/nfs/super.c
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Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r--fs/nfs/super.c29
1 files changed, 23 insertions, 6 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f1afee4eea7..b4148fc00f9 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -48,6 +48,7 @@
#include <linux/vfs.h>
#include <linux/inet.h>
#include <linux/in6.h>
+#include <linux/slab.h>
#include <net/ipv6.h>
#include <linux/netdevice.h>
#include <linux/nfs_xdr.h>
@@ -2186,6 +2187,7 @@ static int nfs_get_sb(struct file_system_type *fs_type,
if (data->version == 4) {
error = nfs4_try_mount(flags, dev_name, data, mnt);
kfree(data->client_address);
+ kfree(data->nfs_server.export_path);
goto out;
}
#endif /* CONFIG_NFS_V4 */
@@ -2214,7 +2216,7 @@ static int nfs_get_sb(struct file_system_type *fs_type,
} else {
error = nfs_bdi_register(server);
if (error)
- goto error_splat_super;
+ goto error_splat_bdi;
}
if (!s->s_root) {
@@ -2256,6 +2258,9 @@ out_err_nosb:
error_splat_root:
dput(mntroot);
error_splat_super:
+ if (server && !s->s_root)
+ bdi_unregister(&server->backing_dev_info);
+error_splat_bdi:
deactivate_locked_super(s);
goto out;
}
@@ -2326,7 +2331,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
} else {
error = nfs_bdi_register(server);
if (error)
- goto error_splat_super;
+ goto error_splat_bdi;
}
if (!s->s_root) {
@@ -2363,6 +2368,9 @@ out_err_noserver:
return error;
error_splat_super:
+ if (server && !s->s_root)
+ bdi_unregister(&server->backing_dev_info);
+error_splat_bdi:
deactivate_locked_super(s);
dprintk("<-- nfs_xdev_get_sb() = %d [splat]\n", error);
return error;
@@ -2578,7 +2586,7 @@ static int nfs4_remote_get_sb(struct file_system_type *fs_type,
} else {
error = nfs_bdi_register(server);
if (error)
- goto error_splat_super;
+ goto error_splat_bdi;
}
if (!s->s_root) {
@@ -2616,6 +2624,9 @@ out_free:
error_splat_root:
dput(mntroot);
error_splat_super:
+ if (server && !s->s_root)
+ bdi_unregister(&server->backing_dev_info);
+error_splat_bdi:
deactivate_locked_super(s);
goto out;
}
@@ -2647,7 +2658,7 @@ static void nfs_fix_devname(const struct path *path, struct vfsmount *mnt)
devname = nfs_path(path->mnt->mnt_devname,
path->mnt->mnt_root, path->dentry,
page, PAGE_SIZE);
- if (devname == NULL)
+ if (IS_ERR(devname))
goto out_freepage;
tmp = kstrdup(devname, GFP_KERNEL);
if (tmp == NULL)
@@ -2811,7 +2822,7 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
} else {
error = nfs_bdi_register(server);
if (error)
- goto error_splat_super;
+ goto error_splat_bdi;
}
if (!s->s_root) {
@@ -2847,6 +2858,9 @@ out_err_noserver:
return error;
error_splat_super:
+ if (server && !s->s_root)
+ bdi_unregister(&server->backing_dev_info);
+error_splat_bdi:
deactivate_locked_super(s);
dprintk("<-- nfs4_xdev_get_sb() = %d [splat]\n", error);
return error;
@@ -2893,7 +2907,7 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type,
} else {
error = nfs_bdi_register(server);
if (error)
- goto error_splat_super;
+ goto error_splat_bdi;
}
if (!s->s_root) {
@@ -2929,6 +2943,9 @@ out_err_noserver:
return error;
error_splat_super:
+ if (server && !s->s_root)
+ bdi_unregister(&server->backing_dev_info);
+error_splat_bdi:
deactivate_locked_super(s);
dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error);
return error;