[Buildroot] [git commit] package/mke2img: check nb_blocks is specified

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=48d5bebe76fafdd7cc3a990b1e6e49468397a2cc
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Since we do not have autocalculation anymore, the user must specify the
exact number of blocks.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 package/mke2img/mke2img | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/mke2img/mke2img b/package/mke2img/mke2img
index b773aa9..758b6de 100755
--- a/package/mke2img/mke2img
+++ b/package/mke2img/mke2img
@@ -44,6 +44,9 @@ main() {
     if [ -z "${image}" ]; then
         error "you must specify an output image file with '-o'\n"
     fi
+    if [ -z "${nb_blocks}" ]; then
+        error "you must specify the size of the output image with '-b'\n"
+    fi
     case "${gen}:${rev}" in
     2:0|2:1|3:1|4:1)
         ;;