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>

7 files changed, 28 insertions, 21 deletions

diff --git a/board/gdsys/405ep/dlvision-10g.c b/board/gdsys/405ep/dlvision-10g.c
index 0388541..ecba66e 100644
--- a/board/gdsys/405ep/dlvision-10g.c
+++ b/board/gdsys/405ep/dlvision-10g.c
@@ -225,15 +225,16 @@ static void print_fpga_info(unsigned dev)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: ");
 
 	printf("DLVision 10G");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 
 	puts("\n");
diff --git a/board/gdsys/405ep/io.c b/board/gdsys/405ep/io.c
index 0974019..db1ea7f 100644
--- a/board/gdsys/405ep/io.c
+++ b/board/gdsys/405ep/io.c
@@ -87,8 +87,9 @@ err_out:
  */
 int checkboard(void)
 {
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(0);
-	char *s = getenv("serial#");
 	u16 versions = in_le16(&fpga->versions);
 	u16 fpga_version = in_le16(&fpga->fpga_version);
 	u16 fpga_features = in_le16(&fpga->fpga_features);
@@ -106,9 +107,9 @@ int checkboard(void)
 
 	printf("CATCenter Io");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	puts("\n       ");
 
diff --git a/board/gdsys/405ep/iocon.c b/board/gdsys/405ep/iocon.c
index 20770e4..ce53340 100644
--- a/board/gdsys/405ep/iocon.c
+++ b/board/gdsys/405ep/iocon.c
@@ -69,8 +69,9 @@ enum {
  */
 int checkboard(void)
 {
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(0);
-	char *s = getenv("serial#");
 	u16 versions = in_le16(&fpga->versions);
 	u16 fpga_version = in_le16(&fpga->fpga_version);
 	u16 fpga_features = in_le16(&fpga->fpga_features);
@@ -98,9 +99,9 @@ int checkboard(void)
 
 	printf("IoCon");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	puts("\n       ");
 
diff --git a/board/gdsys/dlvision/dlvision.c b/board/gdsys/dlvision/dlvision.c
index 3499bdc..5c70326 100644
--- a/board/gdsys/dlvision/dlvision.c
+++ b/board/gdsys/dlvision/dlvision.c
@@ -75,7 +75,8 @@ int misc_init_r(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	u8 channel2_msr = in_8((void *)CONFIG_UART_BASE + 0x26);
 	u8 channel3_msr = in_8((void *)CONFIG_UART_BASE + 0x36);
 	u8 channel7_msr = in_8((void *)CONFIG_UART_BASE + 0x76);
@@ -108,9 +109,9 @@ int checkboard(void)
 		break;
 	}
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	puts("\n       ");
 
diff --git a/board/gdsys/gdppc440etx/gdppc440etx.c b/board/gdsys/gdppc440etx/gdppc440etx.c
index 328eb95..c58411e 100644
--- a/board/gdsys/gdppc440etx/gdppc440etx.c
+++ b/board/gdsys/gdppc440etx/gdppc440etx.c
@@ -145,13 +145,14 @@ int misc_init_r(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: GDPPC440ETX - G&D PPC440EP/GR ETX-module");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/gdsys/intip/intip.c b/board/gdsys/intip/intip.c
index aa85ea4..0132b25 100644
--- a/board/gdsys/intip/intip.c
+++ b/board/gdsys/intip/intip.c
@@ -124,7 +124,8 @@ int get_cpu_num(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 #ifdef CONFIG_DEVCONCENTER
 	printf("Board: DevCon-Center");
@@ -132,9 +133,9 @@ int checkboard(void)
 	printf("Board: Intip");
 #endif
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/gdsys/neo/neo.c b/board/gdsys/neo/neo.c
index a56c2cc..d21d599 100644
--- a/board/gdsys/neo/neo.c
+++ b/board/gdsys/neo/neo.c
@@ -53,7 +53,8 @@ int board_early_init_f(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	u16 val = in_le16((void *)CONFIG_FPGA_BASE + 2);
 	u8 unit_type;
 	u8 hardware_cpu_ports;
@@ -62,9 +63,9 @@ int checkboard(void)
 
 	printf("Board: CATCenter Neo");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	puts("\n       ");