Merge 3.8-rc4 into usb-next

This pulls in all of the -rc4 fixes into usb-next to sync things up.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index b673be31590e..c483cc50b82e 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -126,12 +126,16 @@ void nfs_writedata_release(struct nfs_write_data *wdata)
         put_nfs_open_context(wdata->args.context);
         if (wdata->pages.pagevec != wdata->pages.page_array)
                 kfree(wdata->pages.pagevec);
-        if (wdata != &write_header->rpc_data)
-                kfree(wdata);
-        else
+        if (wdata == &write_header->rpc_data) {
                 wdata->header = NULL;
+                wdata = NULL;
+        }
         if (atomic_dec_and_test(&hdr->refcnt))
                 hdr->completion_ops->completion(hdr);
+        /* Note: we only free the rpc_task after callbacks are done.
+         * See the comment in rpc_free_task() for why
+         */
+        kfree(wdata);
 }
 EXPORT_SYMBOL_GPL(nfs_writedata_release);