4.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: YueHaibing <yuehaibing@xxxxxxxxxx>
[ Upstream commit fd800f646402c0f85547166b59ca065175928b7b ]
qe_muram_alloc return a unsigned long integer,which should not
compared with zero. check it using IS_ERR_VALUE() to fix this.
Fixes: c19b6d246a35 ("drivers/net: support hdlc function for QE-UCC")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -192,7 +192,7 @@ static int uhdlc_init(struct ucc_hdlc_pr
priv->ucc_pram_offset = qe_muram_alloc(sizeof(struct ucc_hdlc_param),
ALIGNMENT_OF_UCC_HDLC_PRAM);
- if (priv->ucc_pram_offset < 0) {
+ if (IS_ERR_VALUE(priv->ucc_pram_offset)) {
dev_err(priv->dev, "Can not allocate MURAM for hdlc parameter.\n");
ret = -ENOMEM;
goto free_tx_bd;
@@ -230,14 +230,14 @@ static int uhdlc_init(struct ucc_hdlc_pr
/* Alloc riptr, tiptr */
riptr = qe_muram_alloc(32, 32);
- if (riptr < 0) {
+ if (IS_ERR_VALUE(riptr)) {
dev_err(priv->dev, "Cannot allocate MURAM mem for Receive internal temp data pointer\n");
ret = -ENOMEM;
goto free_tx_skbuff;
}
tiptr = qe_muram_alloc(32, 32);
- if (tiptr < 0) {
+ if (IS_ERR_VALUE(tiptr)) {
dev_err(priv->dev, "Cannot allocate MURAM mem for Transmit internal temp data pointer\n");
ret = -ENOMEM;
goto free_riptr;
