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-rw-r--r--ubi-utils/src/ubiformat.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/ubi-utils/src/ubiformat.c b/ubi-utils/src/ubiformat.c
index 681ea30..c87dfd0 100644
--- a/ubi-utils/src/ubiformat.c
+++ b/ubi-utils/src/ubiformat.c
@@ -721,6 +721,11 @@ int main(int argc, char * const argv[])
goto out_close_mtd;
}
+ if (!is_power_of_2(mtd.min_io_size)) {
+ errmsg("min. I/O size is %d, but should be power of 2");
+ goto out_close;
+ }
+
if (!mtd_info.sysfs_supported) {
/*
* Linux kernels older than 2.6.30 did not support sysfs