From 1d70468b039b6ead903c9b14fa09005476259a65 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Fri, 19 Sep 2003 08:29:25 +0000
Subject: [PATCH] "start" may be legitimately 0x0000
---
board/trab/auto_update.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/board/trab/auto_update.c b/board/trab/auto_update.c
index 9559d5e04e3..9371637e925 100644
--- a/board/trab/auto_update.c
+++ b/board/trab/auto_update.c
@@ -485,41 +485,45 @@ do_auto_update(void)
* now check whether start and end are defined using environment
* variables.
*/
- start = end = 0;
+ start = -1;
+ end = 0;
env = getenv("firmware_st");
if (env != NULL)
start = simple_strtoul(env, NULL, 16);
env = getenv("firmware_nd");
if (env != NULL)
end = simple_strtoul(env, NULL, 16);
- if (start && end && end > start)
+ if (start >= 0 && end && end > start)
ausize[IDX_FIRMWARE] = (end + 1) - start;
- start = end = 0;
+ start = -1;
+ end = 0;
env = getenv("kernel_st");
if (env != NULL)
start = simple_strtoul(env, NULL, 16);
env = getenv("kernel_nd");
if (env != NULL)
end = simple_strtoul(env, NULL, 16);
- if (start && end && end > start)
+ if (start >= 0 && end && end > start)
ausize[IDX_KERNEL] = (end + 1) - start;
- start = end = 0;
+ start = -1;
+ end = 0;
env = getenv("app_st");
if (env != NULL)
start = simple_strtoul(env, NULL, 16);
env = getenv("app_nd");
if (env != NULL)
end = simple_strtoul(env, NULL, 16);
- if (start && end && end > start)
+ if (start >= 0 && end && end > start)
ausize[IDX_APP] = (end + 1) - start;
- start = end = 0;
+ start = -1;
+ end = 0;
env = getenv("disk_st");
if (env != NULL)
start = simple_strtoul(env, NULL, 16);
env = getenv("disk_nd");
if (env != NULL)
end = simple_strtoul(env, NULL, 16);
- if (start && end && end > start)
+ if (start >= 0 && end && end > start)
ausize[IDX_DISK] = (end + 1) - start;
/* make sure that we see CTRL-C and save the old state */
old_ctrlc = disable_ctrlc(0);
--
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