From: Ondrej Zary <linux@rainbow-software.org>
Date: Fri, 6 Feb 2015 22:11:57 +0000 (+0100)
Subject: aha1542: remove loop from aha1542_outb
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=eef77801b56b098cd7e1daf8a03854dd203a051c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

aha1542: remove loop from aha1542_outb

The loop in aha1542_outb with double-check is no longer needed, remove it.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
---

diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index af821f340a85..ec432763a29a 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -91,14 +91,11 @@ static inline bool wait_mask(u16 port, u8 mask, u8 allof, u8 noneof, int timeout
 
 static int aha1542_outb(unsigned int base, u8 val)
 {
-	while (1) {
-		if (!wait_mask(STATUS(base), CDF, 0, CDF, 0))
-			return 1;
-		if (inb(STATUS(base)) & CDF)
-			continue;
-		outb(val, DATA(base));
-		return 0;
-	}
+	if (!wait_mask(STATUS(base), CDF, 0, CDF, 0))
+		return 1;
+	outb(val, DATA(base));
+
+	return 0;
 }
 
 static int aha1542_out(unsigned int base, u8 *buf, int len)