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authorTom Rini <trini@ti.com>2013-04-05 14:55:21 -0400
committerTom Rini <trini@ti.com>2013-04-05 14:55:21 -0400
commitcd0f4fa1ca2901312ae78bc27d4edc8286fcbf1d (patch)
tree244e08cd2c8702c9c6c5854eece41377716dbd31 /common/env_dataflash.c
parentbc5fd908d976cfd898e8cbb591e7220ddc8a684a (diff)
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Revert "env: fix potential stack overflow in environment functions"
Wolfgang requested this be reverted and Rob agreed after further discussion. This was a symptom of a larger problem we need to deal with. This reverts commit 60d7d5a63189c9f77a190c9965861dc15482c2d0. Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'common/env_dataflash.c')
-rw-r--r--common/env_dataflash.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/common/env_dataflash.c b/common/env_dataflash.c
index 0591b99..38c9615 100644
--- a/common/env_dataflash.c
+++ b/common/env_dataflash.c
@@ -30,7 +30,6 @@ DECLARE_GLOBAL_DATA_PTR;
env_t *env_ptr;
char *env_name_spec = "dataflash";
-static char env_buf[CONFIG_ENV_SIZE];
uchar env_get_char_spec(int index)
{
@@ -43,9 +42,11 @@ uchar env_get_char_spec(int index)
void env_relocate_spec(void)
{
- read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, env_buf);
+ char buf[CONFIG_ENV_SIZE];
- env_import(env_buf, 1);
+ read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, buf);
+
+ env_import(buf, 1);
}
#ifdef CONFIG_ENV_OFFSET_REDUND
@@ -54,20 +55,20 @@ void env_relocate_spec(void)
int saveenv(void)
{
- env_t *env_new = (env_t *)env_buf;
+ env_t env_new;
ssize_t len;
char *res;
- res = (char *)env_new->data;
+ res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
}
- env_new->crc = crc32(0, env_new->data, ENV_SIZE);
+ env_new.crc = crc32(0, env_new.data, ENV_SIZE);
return write_dataflash(CONFIG_ENV_ADDR,
- (unsigned long)env_new,
+ (unsigned long)&env_new,
CONFIG_ENV_SIZE);
}