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>

18 files changed, 74 insertions, 56 deletions

diff --git a/board/amcc/acadia/acadia.c b/board/amcc/acadia/acadia.c
index 482561122a..68a99bd1ee 100644
--- a/board/amcc/acadia/acadia.c
+++ b/board/amcc/acadia/acadia.c
@@ -102,15 +102,16 @@ int misc_init_f(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	u8 rev;
 
 	rev = in8(CONFIG_SYS_CPLD_BASE + 0);
 	printf("Board: Acadia - AMCC PPC405EZ Evaluation Board, Rev. %X", rev);
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/bamboo/bamboo.c b/board/amcc/bamboo/bamboo.c
index d4205e034b..79788a80fc 100644
--- a/board/amcc/bamboo/bamboo.c
+++ b/board/amcc/bamboo/bamboo.c
@@ -440,12 +440,13 @@ int board_early_init_f(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: Bamboo - AMCC PPC440EP Evaluation Board");
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/bluestone/bluestone.c b/board/amcc/bluestone/bluestone.c
index fe8929c389..584f5effc6 100644
--- a/board/amcc/bluestone/bluestone.c
+++ b/board/amcc/bluestone/bluestone.c
@@ -78,13 +78,14 @@ int board_early_init_f(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	puts("Board: Bluestone Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/bubinga/bubinga.c b/board/amcc/bubinga/bubinga.c
index 49eadb9212..1ed0aeeaf9 100644
--- a/board/amcc/bubinga/bubinga.c
+++ b/board/amcc/bubinga/bubinga.c
@@ -53,13 +53,14 @@ int board_early_init_f(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	puts("Board: Bubinga - AMCC PPC405EP Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c
index 80e2739fe0..2f0d94172b 100644
--- a/board/amcc/canyonlands/canyonlands.c
+++ b/board/amcc/canyonlands/canyonlands.c
@@ -293,7 +293,8 @@ int checkboard(void)
 {
 	struct board_bcsr *bcsr_data =
 		(struct board_bcsr *)CONFIG_SYS_BCSR_BASE;
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	if (pvr_460ex()) {
 		printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
@@ -319,9 +320,9 @@ int checkboard(void)
 
 	printf(", Rev. %X", in_8(&bcsr_data->cpld_rev));
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/ebony/ebony.c b/board/amcc/ebony/ebony.c
index 923dbca718..ad9439497c 100644
--- a/board/amcc/ebony/ebony.c
+++ b/board/amcc/ebony/ebony.c
@@ -92,12 +92,13 @@ int board_early_init_f(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: Ebony - AMCC PPC440GP Evaluation Board");
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/katmai/katmai.c b/board/amcc/katmai/katmai.c
index 7301cd5953..34380658e5 100644
--- a/board/amcc/katmai/katmai.c
+++ b/board/amcc/katmai/katmai.c
@@ -236,12 +236,13 @@ int board_early_init_f (void)
 
 int checkboard (void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: Katmai - AMCC 440SPe Evaluation Board");
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index bd6550cd05..1648734ab6 100644
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -307,16 +307,17 @@ int board_pcie_last(void)
 
 int checkboard (void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	if (is_405exr())
 		printf("Board: Haleakala - AMCC PPC405EXr Evaluation Board");
 	else
 		printf("Board: Kilauea - AMCC PPC405EX Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	printf(" (CPLD rev. %ld)\n", gd->board_type);
 
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index b2595a8ec1..d4b620e857 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -105,13 +105,14 @@ 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: Luan - AMCC PPC440SP Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/makalu/makalu.c b/board/amcc/makalu/makalu.c
index 483df66272..34a094fc76 100644
--- a/board/amcc/makalu/makalu.c
+++ b/board/amcc/makalu/makalu.c
@@ -224,13 +224,14 @@ 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: Makalu - AMCC PPC405EX Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/ocotea/ocotea.c b/board/amcc/ocotea/ocotea.c
index bbb5331ef2..d2091e5bf4 100644
--- a/board/amcc/ocotea/ocotea.c
+++ b/board/amcc/ocotea/ocotea.c
@@ -200,12 +200,13 @@ int board_early_init_f (void)
 
 int checkboard (void)
 {
-	char *s = getenv ("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf ("Board: Ocotea - AMCC PPC440GX Evaluation Board");
-	if (s != NULL) {
-		puts (", serial# ");
-		puts (s);
+	if (i > 0) {
+		puts(", serial# ");
+		puts(buf);
 	}
 	putc ('\n');
 
diff --git a/board/amcc/redwood/redwood.c b/board/amcc/redwood/redwood.c
index bb7565e2e4..8ca14954c7 100644
--- a/board/amcc/redwood/redwood.c
+++ b/board/amcc/redwood/redwood.c
@@ -200,12 +200,13 @@ int board_early_init_f(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: Redwood - AMCC 460SX Reference Board");
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index b518aa7d72..45e87f7631 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -331,7 +331,8 @@ int misc_init_r(void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	u8 rev;
 	u32 clock = get_async_pci_freq();
 
@@ -344,9 +345,9 @@ int checkboard(void)
 	rev = in_8((void *)(CONFIG_SYS_BCSR_BASE + 0));
 	printf(", Rev. %X, PCI-Async=%d MHz", rev, clock / 1000000);
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
index 87c9403e4a..8c6b0977aa 100644
--- a/board/amcc/taihu/taihu.c
+++ b/board/amcc/taihu/taihu.c
@@ -65,13 +65,14 @@ int board_early_init_f(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/taishan/taishan.c b/board/amcc/taishan/taishan.c
index 2957a77486..fcaf7fde26 100644
--- a/board/amcc/taishan/taishan.c
+++ b/board/amcc/taishan/taishan.c
@@ -193,12 +193,13 @@ 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: Taishan - AMCC PPC440GX Evaluation Board");
-	if (s != NULL) {
-		puts (", serial# ");
-		puts (s);
+	if (i > 0) {
+		puts(", serial# ");
+		puts(buf);
 	}
 	putc ('\n');
 
diff --git a/board/amcc/walnut/walnut.c b/board/amcc/walnut/walnut.c
index 4f299324cd..d3287cea19 100644
--- a/board/amcc/walnut/walnut.c
+++ b/board/amcc/walnut/walnut.c
@@ -67,7 +67,8 @@ int board_early_init_f(void)
  */
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	uint pvr = get_pvr();
 
 	if (pvr == PVR_405GPR_RB) {
@@ -76,9 +77,9 @@ int checkboard(void)
 		puts("Board: Walnut - AMCC PPC405GP Evaluation Board");
 	}
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/yosemite/yosemite.c b/board/amcc/yosemite/yosemite.c
index aaeab6f5fd..0c95c3634b 100644
--- a/board/amcc/yosemite/yosemite.c
+++ b/board/amcc/yosemite/yosemite.c
@@ -188,7 +188,8 @@ int misc_init_r (void)
 
 int checkboard(void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 	u8 rev;
 	u32 clock = get_async_pci_freq();
 
@@ -201,9 +202,9 @@ int checkboard(void)
 	rev = in_8((void *)(CONFIG_SYS_BCSR_BASE + 0));
 	printf(", Rev. %X, PCI-Async=%d MHz", rev, clock / 1000000);
 
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');
 
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index b128e46c27..1fab794bd3 100644
--- a/board/amcc/yucca/yucca.c
+++ b/board/amcc/yucca/yucca.c
@@ -542,12 +542,13 @@ int board_early_init_f (void)
 
 int checkboard (void)
 {
-	char *s = getenv("serial#");
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
 
 	printf("Board: Yucca - AMCC 440SPe Evaluation Board");
-	if (s != NULL) {
+	if (i > 0) {
 		puts(", serial# ");
-		puts(s);
+		puts(buf);
 	}
 	putc('\n');