From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Sat, 8 May 2010 18:27:18 +0000 (+0400)
Subject: pata_cmd640: don't read CFR pointlessly
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=276a47a93dbfe5d35261451925020f65cdbfcce8;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

pata_cmd640: don't read CFR pointlessly

cmd640_hardware_init() reads CFR but doesn't use the value read...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c
index 45896b3c6538..7d2fac645b4c 100644
--- a/drivers/ata/pata_cmd640.c
+++ b/drivers/ata/pata_cmd640.c
@@ -181,13 +181,10 @@ static struct ata_port_operations cmd640_port_ops = {
 
 static void cmd640_hardware_init(struct pci_dev *pdev)
 {
-	u8 r;
 	u8 ctrl;
 
 	/* CMD640 detected, commiserations */
 	pci_write_config_byte(pdev, 0x5B, 0x00);
-	/* Get version info */
-	pci_read_config_byte(pdev, CFR, &r);
 	/* PIO0 command cycles */
 	pci_write_config_byte(pdev, CMDTIM, 0);
 	/* 512 byte bursts (sector) */