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| author | Tom Rini <trini@ti.com> | 2013-04-05 14:55:21 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-04-05 14:55:21 -0400 |
| commit | cd0f4fa1ca2901312ae78bc27d4edc8286fcbf1d (patch) | |
| tree | 244e08cd2c8702c9c6c5854eece41377716dbd31 /common/env_dataflash.c | |
| parent | bc5fd908d976cfd898e8cbb591e7220ddc8a684a (diff) | |
| download | olio-uboot-2014.01-cd0f4fa1ca2901312ae78bc27d4edc8286fcbf1d.tar.xz olio-uboot-2014.01-cd0f4fa1ca2901312ae78bc27d4edc8286fcbf1d.zip | |
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.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/common/env_dataflash.c b/common/env_dataflash.c index 0591b999a..38c96157b 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); } |