Unsignify lengths and addresses in chip functions and structs

Push those changes forward where needed to prevent new sign
conversion warnings where possible.

Corresponding to flashrom svn r1470.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
diff --git a/w39.c b/w39.c
index 2e9aa4f..a2c1014 100644
--- a/w39.c
+++ b/w39.c
@@ -21,7 +21,7 @@
 
 #include "flash.h"
 
-static int printlock_w39_fwh_block(struct flashchip *flash, int offset)
+static int printlock_w39_fwh_block(struct flashchip *flash, unsigned int offset)
 {
 	chipaddr wrprotect = flash->virtual_registers + offset + 2;
 	uint8_t locking;
@@ -59,7 +59,7 @@
 	return (locking & ((1 << 2) | (1 << 0))) ? -1 : 0;
 }
 
-static int unlock_w39_fwh_block(struct flashchip *flash, int offset)
+static int unlock_w39_fwh_block(struct flashchip *flash, unsigned int offset)
 {
 	chipaddr wrprotect = flash->virtual_registers + offset + 2;
 	uint8_t locking;
@@ -80,7 +80,7 @@
 	return 0;
 }
 
-static uint8_t w39_idmode_readb(struct flashchip *flash, int offset)
+static uint8_t w39_idmode_readb(struct flashchip *flash, unsigned int offset)
 {
 	chipaddr bios = flash->virtual_memory;
 	uint8_t val;
@@ -127,7 +127,7 @@
 	return 0;
 }
 
-static int printlock_w39_common(struct flashchip *flash, int offset)
+static int printlock_w39_common(struct flashchip *flash, unsigned int offset)
 {
 	uint8_t lock;
 
@@ -138,7 +138,7 @@
 
 static int printlock_w39_fwh(struct flashchip *flash)
 {
-	int i, total_size = flash->total_size * 1024;
+	unsigned int i, total_size = flash->total_size * 1024;
 	int ret = 0;
 	
 	/* Print lock status of the complete chip */
@@ -150,7 +150,7 @@
 
 static int unlock_w39_fwh(struct flashchip *flash)
 {
-	int i, total_size = flash->total_size * 1024;
+	unsigned int i, total_size = flash->total_size * 1024;
 	
 	/* Unlock the complete chip */
 	for (i = 0; i < total_size; i += flash->page_size)