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-rw-r--r--drivers/net/wan/fsl_ucc_hdlc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 8d13586bb774..f029eaa7cfc0 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -245,6 +245,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
ret = -ENOMEM;
goto free_riptr;
}
+ if (riptr != (u16)riptr || tiptr != (u16)tiptr) {
+ dev_err(priv->dev, "MURAM allocation out of addressable range\n");
+ ret = -ENOMEM;
+ goto free_tiptr;
+ }
/* Set RIPTR, TIPTR */
iowrite16be(riptr, &priv->ucc_pram->riptr);