If the list of mirrors is empty, then don't send an RPC call.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfs/flexfilelayout/flexfilelayout.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 90462a2a9237..a6264d6836dc 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -2250,6 +2250,11 @@ ff_layout_prepare_layoutstats(struct nfs42_layoutstat_args *args)
args->num_dev = ff_layout_mirror_prepare_stats(args,
&ff_layout->generic_hdr, dev_count);
spin_unlock(&args->inode->i_lock);
+ if (!args->num_dev) {
+ kfree(args->devinfo);
+ args->devinfo = NULL;
+ return -ENOENT;
+ }
return 0;
}
--
2.9.3
--
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