From: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Date: Fri, 11 Dec 2009 18:53:16 +0000 (+0100)
Subject: memdisk: Fix "might be used uninitialized" warning
X-Git-Tag: syslinux-3.85-pre1~5^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd5188bc5c189b6d374ccd4cd5eeba0d9f718ae1;p=profile%2Fivi%2Fsyslinux.git

memdisk: Fix "might be used uninitialized" warning

Impact: Initializing variables

The checksum_buf function was providing an incorrect checksum
on at least one build.
---

diff --git a/memdisk/setup.c b/memdisk/setup.c
index ea17afd..b8eadfb 100644
--- a/memdisk/setup.c
+++ b/memdisk/setup.c
@@ -592,7 +592,7 @@ static const struct geometry *get_disk_image_geometry(uint32_t where,
 		while (!ok) {
 		    /* Assume it's a floppy drive, guess a geometry */
 		    unsigned int type, track;
-		    int c, h, s;
+		    int c, h, s = 0;
 
 		    if (xsectors < 320 * 2) {
 			c = 40;
@@ -795,7 +795,7 @@ static void relocate_rm_code(uint32_t newbase)
 static uint8_t checksum_buf(const void *buf, int count)
 {
     const uint8_t *p = buf;
-    uint8_t c;
+    uint8_t c = 0;
 
     while (count--)
 	c += *p++;