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-rw-r--r--ubi-utils/mtdinfo.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/ubi-utils/mtdinfo.c b/ubi-utils/mtdinfo.c
index e72d69e..b4a2f4c 100644
--- a/ubi-utils/mtdinfo.c
+++ b/ubi-utils/mtdinfo.c
@@ -58,6 +58,8 @@ static const char optionsstr[] =
" on this MTD device\n"
"-M, --map print eraseblock map\n"
"-a, --all print information about all MTD devices\n"
+" Note: `--all' may give less info per device\n"
+" than, e.g., `mtdinfo /dev/mtdX'\n"
"-h, --help print help message\n"
"-V, --version print program version";
@@ -239,8 +241,14 @@ static void print_region_info(const struct mtd_dev_info *mtd)
region_info_t reginfo;
int r, fd;
- /* If we don't have any region info, just return */
- if (!args.map && mtd->region_cnt == 0)
+ /*
+ * If we don't have any region info, just return
+ *
+ * FIXME: We can't get region_info (via ioctl) without having the MTD
+ * node path. This is a problem for `mtdinfo -a', for example,
+ * since it doesn't provide any filepath information.
+ */
+ if (!args.node || (!args.map && mtd->region_cnt == 0))
return;
/* First open the device so we can query it */