From: Ye Li <ye.li@nxp.com>
Date: Sun, 3 May 2020 14:27:01 +0000 (+0800)
Subject: sata: ahsata: Fix wrong operand for checking SERR DIAG_X
X-Git-Url: http://git.dujemihanovic.xyz/html/index.html?a=commitdiff_plain;h=87e2cb530fc147676319b7c639e7ce138ddf385e;p=u-boot.git

sata: ahsata: Fix wrong operand for checking SERR DIAG_X

Fix coverity issue CID 3261683: Wrong operator used
(CONSTANT_EXPRESSION_RESULT) operator_confusion:
({...; __v;}) | 67108864 is always 1/true regardless of the values
of its operand. This occurs as the logical operand of !

When DIAG_X is set, the PHY COMINIT signal is detected, so
should use '&' to check whether it is set.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/ata/dwc_ahsata.c b/drivers/ata/dwc_ahsata.c
index a775214792..4b37a02338 100644
--- a/drivers/ata/dwc_ahsata.c
+++ b/drivers/ata/dwc_ahsata.c
@@ -223,7 +223,7 @@ static int ahci_host_init(struct ahci_uc_priv *uc_priv)
 
 		/* Wait for COMINIT bit 26 (DIAG_X) in SERR */
 		timeout = 1000;
-		while (!(readl(&port_mmio->serr) | SATA_PORT_SERR_DIAG_X)
+		while (!(readl(&port_mmio->serr) & SATA_PORT_SERR_DIAG_X)
 			&& --timeout)
 			;
 		if (timeout <= 0) {