SUNRPC: Fix Oopsable condition in rpc_pipefs
The elements on rpci->in_upcall are tracked by the filp->private_data,
which will ensure that they get released when the file is closed.
The exception is if rpc_close_pipes() gets called first, since that
sets rpci->ops to NULL.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index e3b242d..c76ea22 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -59,7 +59,6 @@
struct rpc_inode *rpci = RPC_I(inode);
__rpc_purge_list(rpci, &rpci->pipe, err);
- __rpc_purge_list(rpci, &rpci->in_upcall, err);
rpci->pipelen = 0;
wake_up(&rpci->waitq);
}
@@ -119,6 +118,7 @@
down(&inode->i_sem);
if (rpci->ops != NULL) {
rpci->nreaders = 0;
+ __rpc_purge_list(rpci, &rpci->in_upcall, -EPIPE);
__rpc_purge_upcall(inode, -EPIPE);
rpci->nwriters = 0;
if (rpci->ops->release_pipe)