NFSv4: Fix a tracepoint Oops in initiate_file_draining()

trondmy · amschuma-ntap · commit 2a534a7473bf · 2018-09-14T16:23:16.000-04:00
Now that the value of 'ino' can be NULL or an ERR_PTR(), we need to change the test in the tracepoint. Fixes: ce5624f ("NFSv4: Return NFS4ERR_DELAY when a layout fails...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
@@ -1194,7 +1194,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_stateid_callback_event,
 		TP_fast_assign(
 			__entry->error = error;
 			__entry->fhandle = nfs_fhandle_hash(fhandle);
-			if (inode != NULL) {
+			if (!IS_ERR_OR_NULL(inode)) {
 				__entry->fileid = NFS_FILEID(inode);
 				__entry->dev = inode->i_sb->s_dev;
 			} else {
