From d356dbe23f607dc1a05eb3af887a6ea21c519cb3 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Tue, 15 Jun 2021 14:52:53 +0100 Subject: [PATCH] net: pcs: xpcs: Fix a less than zero u16 comparison error Currently the check for the u16 variable val being less than zero is always false because val is unsigned. Fix this by using the int variable for the assignment and less than zero check. Addresses-Coverity: ("Unsigned compared against 0") Fixes: f7380bba42fd ("net: pcs: xpcs: add support for NXP SJA1110") Signed-off-by: Colin Ian King Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller --- drivers/net/pcs/pcs-xpcs-nxp.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/pcs/pcs-xpcs-nxp.c b/drivers/net/pcs/pcs-xpcs-nxp.c index de99c37cf2ae..984c9f7f16a8 100644 --- a/drivers/net/pcs/pcs-xpcs-nxp.c +++ b/drivers/net/pcs/pcs-xpcs-nxp.c @@ -152,13 +152,13 @@ static int nxp_sja1110_pma_config(struct dw_xpcs *xpcs, /* Enable TX and RX PLLs and circuits. * Release reset of PMA to enable data flow to/from PCS. */ - val = xpcs_read(xpcs, MDIO_MMD_VEND2, SJA1110_POWERDOWN_ENABLE); - if (val < 0) - return val; + ret = xpcs_read(xpcs, MDIO_MMD_VEND2, SJA1110_POWERDOWN_ENABLE); + if (ret < 0) + return ret; - val &= ~(SJA1110_TXPLL_PD | SJA1110_TXPD | SJA1110_RXCH_PD | - SJA1110_RXBIAS_PD | SJA1110_RESET_SER_EN | - SJA1110_RESET_SER | SJA1110_RESET_DES); + val = ret & ~(SJA1110_TXPLL_PD | SJA1110_TXPD | SJA1110_RXCH_PD | + SJA1110_RXBIAS_PD | SJA1110_RESET_SER_EN | + SJA1110_RESET_SER | SJA1110_RESET_DES); val |= SJA1110_RXPKDETEN | SJA1110_RCVEN; ret = xpcs_write(xpcs, MDIO_MMD_VEND2, SJA1110_POWERDOWN_ENABLE, val);