1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c
index 057528e23d3a..892f2b92a4d8 100644
--- a/drivers/rpmsg/qcom_glink_smem.c
+++ b/drivers/rpmsg/qcom_glink_smem.c
@@ -183,6 +183,9 @@ static void glink_smem_tx_write(struct qcom_glink_pipe *glink_pipe,
         if (head >= pipe->native.length)
                 head -= pipe->native.length;
 
+        /* Ensure ordering of fifo and head update */
+        wmb();
+
         *pipe->head = cpu_to_le32(head);
 }