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-rw-r--r--cmd/mtdparts.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/cmd/mtdparts.c b/cmd/mtdparts.c
index 7860ed9..53074a1 100644
--- a/cmd/mtdparts.c
+++ b/cmd/mtdparts.c
@@ -142,6 +142,8 @@ static struct list_head devices;
struct mtd_device *current_mtd_dev = NULL;
u8 current_mtd_partnum = 0;
+u8 use_defaults;
+
static struct part_info* mtd_part_info(struct mtd_device *dev, unsigned int part_num);
/* command line only routines */
@@ -1723,6 +1725,7 @@ int mtdparts_init(void)
memset(last_ids, 0, MTDIDS_MAXLEN);
memset(last_parts, 0, MTDPARTS_MAXLEN);
memset(last_partition, 0, PARTITION_MAXLEN);
+ use_defaults = 1;
initialized = 1;
}
@@ -1761,10 +1764,16 @@ int mtdparts_init(void)
return 1;
}
- /* do no try to use defaults when mtdparts variable is not defined,
- * just check the length */
- if (!parts)
- printf("mtdparts variable not set, see 'help mtdparts'\n");
+ /* use defaults when mtdparts variable is not defined
+ * once mtdparts is saved environment, drop use_defaults flag */
+ if (!parts) {
+ if (mtdparts_default && use_defaults) {
+ parts = mtdparts_default;
+ if (setenv("mtdparts", (char *)parts) == 0)
+ use_defaults = 0;
+ } else
+ printf("mtdparts variable not set, see 'help mtdparts'\n");
+ }
if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
@@ -1936,9 +1945,10 @@ static int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc,
{
if (argc == 2) {
if (strcmp(argv[1], "default") == 0) {
- setenv("mtdids", (char *)mtdids_default);
- setenv("mtdparts", (char *)mtdparts_default);
+ setenv("mtdids", NULL);
+ setenv("mtdparts", NULL);
setenv("partition", NULL);
+ use_defaults = 1;
mtdparts_init();
return 0;