From: Eric Sandeen <sandeen@xxxxxxxxxx>
print more informative error when we fail to open a device
If open() fails, we should let the user know why it failed.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Signed-off-by: Gene Czarcinski <gene@xxxxxxxxx>
---
utils.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/utils.c b/utils.c
index d92f317..b560a49 100644
--- a/utils.c
+++ b/utils.c
@@ -1212,7 +1212,8 @@ scan_again:
fd = open(fullpath, O_RDONLY);
if (fd < 0) {
- fprintf(stderr, "failed to read %s\n", fullpath);
+ fprintf(stderr, "failed to open %s: %s\n",
+ fullpath, strerror(errno));
continue;
}
ret = btrfs_scan_one_device(fd, fullpath, &tmp_devices,
--
1.8.1
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