[PATCH 26/26] commands: parted: exit if block size if not 512

While the partition parser can now deal with non-512-byte block sizes,
the partition writer still needs some more love beyond just replacing
SECTOR_SIZE/SECTOR_SHIFT.

Until that is afforded, exit with a descriptive error message.

Signed-off-by: Ahmad Fatoum <[email protected]>
---
 commands/createnv.c | 7 +++++++
 commands/parted.c   | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/commands/createnv.c b/commands/createnv.c
index 6083ab7c2c8f..5d9dc5732c8a 100644
--- a/commands/createnv.c
+++ b/commands/createnv.c
@@ -69,6 +69,13 @@ static int do_createnv(int argc, char *argv[])
 		goto err;
 	}
 
+	if (BLOCKSIZE(blk) != SECTOR_SIZE) {
+		printf("parted: device has block size of %u, but only 512 currently supported\n",
+		       BLOCKSIZE(blk));
+		ret = -ENOTSUPP;
+		goto err;
+	}
+
 	buf = xzalloc(2 * BLOCKSIZE(blk));
 
 	ret = cdev_read(cdev, buf, 2 * BLOCKSIZE(blk), 0, 0);
diff --git a/commands/parted.c b/commands/parted.c
index 3f531faaef3f..829796748827 100644
--- a/commands/parted.c
+++ b/commands/parted.c
@@ -392,6 +392,13 @@ static int do_parted(int argc, char *argv[])
 		goto err;
 	}
 
+	if (BLOCKSIZE(blk) != SECTOR_SIZE) {
+		printf("parted: device has block size of %u, but only 512 currently supported\n",
+		       BLOCKSIZE(blk));
+		ret = -ENOTSUPP;
+		goto err;
+	}
+
 	argc -= 2;
 	argv += 2;
 
-- 
2.47.3