Fix incorrect use of getenv() before relocation
A large number of boards incorrectly used getenv() in their board init
code running before relocation. In some cases this caused U-Boot to
hang when certain environment variables grew too long.
Fix the code to use getenv_r().
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: The LEOX team <team@leox.org>
Cc: Michael Schwingen <michael@schwingen.org>
Cc: Georg Schardt <schardt@team-ctech.de>
Cc: Werner Pfister <Pfister_Werner@intercontrol.de>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: Peter De Schrijver <p2@mind.be>
Cc: John Zhan <zhanz@sinovee.com>
Cc: Rishi Bhattacharya <rishi@ti.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/ml2/ml2.c b/board/ml2/ml2.c
index 981e1de..319dca0 100644
--- a/board/ml2/ml2.c
+++ b/board/ml2/ml2.c
@@ -30,23 +30,19 @@
int checkboard (void)
{
- char *s = getenv ("serial#");
- char *e;
+ char buf[64];
+ int i;
+ int l = getenv_f("serial#", buf, sizeof(buf));
- if (!s || strncmp (s, "ML2", 9)) {
+ if (l < 0 || strncmp(buf, "ML2", 9)) {
printf ("### No HW ID - assuming ML2");
} else {
- for (e = s; *e; ++e) {
- if (*e == ' ')
+ for (i = 0; i < l; i++) {
+ if (buf[i] == ' ')
break;
- }
-
- for (; s < e; ++s) {
- putc (*s);
+ putc(buf[i]);
}
}
-
-
putc ('\n');
return (0);