From: NeilBrown <neilb@suse.de>
Date: Sun, 13 Mar 2011 06:13:37 +0000 (+1100)
Subject: mkfs.lafs should give an error on size-zero devices.
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=cc845e173a0fa7e7b95e98818c9388c47039e278;p=lafs-utils.git

mkfs.lafs should give an error on size-zero devices.

size==0 sometimes means we have already printed a message..

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/tools/mkfs.lafs.c b/tools/mkfs.lafs.c
index 2d61ca0..5609321 100644
--- a/tools/mkfs.lafs.c
+++ b/tools/mkfs.lafs.c
@@ -195,6 +195,8 @@ int open_device(char *devname, long long *device_bytes, int regular_file)
 		else if (ioctl(fd, BLKGETSIZE64, &size) != 0)
 			fprintf(stderr, "mkfs.lafs: Cannot get size of %s\n",
 				devname);
+		else if (size == 0)
+			size = 1;/*ensure we get an error */
 	}
 	if (size == 0)
 		;