env: Add env_export() wrapper
Implement env_export() wrapper, so that all implementers of saveenv() don't
have to call hexport_r(), crc32() etc. sequence . This trims down a bit of
code duplication.
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/common/env_fat.c b/common/env_fat.c
index 708fd13..aad0487 100644
--- a/common/env_fat.c
+++ b/common/env_fat.c
@@ -37,19 +37,14 @@
int saveenv(void)
{
env_t env_new;
- ssize_t len;
- char *res;
block_dev_desc_t *dev_desc = NULL;
int dev = FAT_ENV_DEVICE;
int part = FAT_ENV_PART;
int err;
- 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;
- }
+ err = env_export(&env_new);
+ if (err)
+ return err;
#ifdef CONFIG_MMC
if (strcmp(FAT_ENV_INTERFACE, "mmc") == 0) {
@@ -79,7 +74,6 @@
return 1;
}
- env_new.crc = crc32(0, env_new.data, ENV_SIZE);
err = file_fat_write(FAT_ENV_FILE, (void *)&env_new, sizeof(env_t));
if (err == -1) {
printf("\n** Unable to write \"%s\" from %s%d:%d **\n",