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env_mmc: fix cannot save env issue

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The env change its implementation after this log, while env mmc
didn't change it immediately, which cause issue. Follow to the
new style to fix it.

commit ea882baf9c
Author: Wolfgang Denk <wd@denx.de>
Date:   Sun Jun 20 23:33:59 2010 +0200

    New implementation for internal handling of environment variables.

Signed-off-by: Lei Wen <leiwen@marvell.com>
This commit is contained in:
Lei Wen
2010-10-13 11:07:21 +08:00
committed by Wolfgang Denk
parent 1a2d9b30e3
commit e79f48393d
1 changed files with 12 additions and 1 deletions
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13
common/env_mmc.c
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@@ -29,6 +29,7 @@
#include <linux/stddef.h> #include <linux/stddef.h>
#include <malloc.h> #include <malloc.h>
#include <mmc.h> #include <mmc.h>
#include <errno.h>
/* references to names in env_common.c */ /* references to names in env_common.c */
extern uchar default_environment[]; extern uchar default_environment[];
@@ -96,13 +97,23 @@ inline int write_env(struct mmc *mmc, unsigned long size,
int saveenv(void) int saveenv(void)
{ {
env_t env_new;
ssize_t len;
char *res;
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
if (init_mmc_for_env(mmc)) if (init_mmc_for_env(mmc))
return 1; return 1;
res = (char *)&env_new.data;
len = hexport('\0', &res, ENV_SIZE);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
}
env_new.crc = crc32(0, env_new.data, ENV_SIZE);
printf("Writing to MMC(%d)... ", CONFIG_SYS_MMC_ENV_DEV); printf("Writing to MMC(%d)... ", CONFIG_SYS_MMC_ENV_DEV);
if (write_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr)) { if (write_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, (u_char *)&env_new)) {
puts("failed\n"); puts("failed\n");
return 1; return 1;
} }