1 files changed, 1 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/viohs.c b/arch/sparc64/kernel/viohs.c
index 8eb381fa0f28..09126fc338ba 100644
--- a/arch/sparc64/kernel/viohs.c
+++ b/arch/sparc64/kernel/viohs.c
@@ -90,6 +90,7 @@ static void flush_rx_dring(struct vio_driver_state *vio)
 
         BUG_ON(!vio->desc_buf);
         kfree(vio->desc_buf);
+        vio->desc_buf = NULL;
 
         memset(dr, 0, sizeof(*dr));
         dr->ident = ident;