diff options
Diffstat (limited to 'env/mmc.c')
| -rw-r--r-- | env/mmc.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/env/mmc.c b/env/mmc.c index db2d35e9bd4..5d09140655f 100644 --- a/env/mmc.c +++ b/env/mmc.c @@ -91,7 +91,8 @@ static inline int mmc_offset_try_partition(const char *str, int copy, s64 *val) { struct disk_partition info; struct blk_desc *desc; - int len, ret; + lbaint_t len; + int ret; char dev_str[4]; snprintf(dev_str, sizeof(dev_str), "%d", mmc_get_env_dev()); @@ -110,6 +111,13 @@ static inline int mmc_offset_try_partition(const char *str, int copy, s64 *val) /* round up to info.blksz */ len = DIV_ROUND_UP(CONFIG_ENV_SIZE, info.blksz); + if ((1 + copy) * len > info.size) { + printf("Partition '%s' [0x"LBAF"; 0x"LBAF"] too small for %senvironment, required size 0x"LBAF" blocks\n", + (const char*)info.name, info.start, info.size, + copy ? "two copies of " : "", (1 + copy)*len); + return -ENOSPC; + } + /* use the top of the partion for the environment */ *val = (info.start + info.size - (1 + copy) * len) * info.blksz; |