Only allow (re-)assignment to an UBI partition/device when UBIFS is
currently not mounted. Otherwise the following UBIFS commands will
crash.
Signed-off-by: Stefan Roese <s...@denx.de>
---
common/cmd_ubi.c | 13 +++++++++++++
common/cmd_ubifs.c | 5 +++++
2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/common/cmd_ubi.c b/common/cmd_ubi.c
index 7692ac7..1e73f48 100644
--- a/common/cmd_ubi.c
+++ b/common/cmd_ubi.c
@@ -42,6 +42,8 @@ struct selected_dev {
static struct selected_dev ubi_dev;
+int ubifs_is_mounted(void);
+
static void ubi_dump_vol_info(const struct ubi_volume *vol)
{
ubi_msg("volume information dump:");
@@ -472,6 +474,17 @@ static int do_ubi(cmd_tbl_t * cmdtp, int flag, int argc,
char * const argv[])
if (argc < 3)
return cmd_usage(cmdtp);
+ /*
+ * Only allow (re-)assignment to an UBI partition/device
+ * when UBIFS is currently not mounted. Otherwise
+ * the following UBIFS commands will crash.
+ */
+ if (ubifs_is_mounted()) {
+ printf("UBIFS is currently mounted!"
+ " Unmount using ubifsumount first!\n");
+ return -EPERM;
+ }
+
/* todo: get dev number for NAND... */
ubi_dev.nr = 0;
diff --git a/common/cmd_ubifs.c b/common/cmd_ubifs.c
index 9526780..76fe057 100644
--- a/common/cmd_ubifs.c
+++ b/common/cmd_ubifs.c
@@ -92,6 +92,11 @@ int do_ubifs_umount(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
return 0;
}
+int ubifs_is_mounted(void)
+{
+ return ubifs_mounted;
+}
+
int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *filename = "/";
--
1.7.3.2
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