hi,
This patch modifies the error message of nilfs-tune when user doesn't have
a permission to access the device to show the cause of error clearly.
Signed-off-by: Jiro SEKIBA <jir@xxxxxxxxx>
---
sbin/nilfs-tune/nilfs-tune.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/sbin/nilfs-tune/nilfs-tune.c b/sbin/nilfs-tune/nilfs-tune.c
index 18513f2..f6cdd36 100644
--- a/sbin/nilfs-tune/nilfs-tune.c
+++ b/sbin/nilfs-tune/nilfs-tune.c
@@ -394,10 +394,12 @@ int modify_nilfs(char *device, struct nilfs_tune_options *opts)
struct nilfs_super_block *sbp;
__u64 features;
+ errno = 0;
devfd = open(device, opts->flags);
if (devfd == -1) {
- fprintf(stderr, "%s: cannot open NILFS\n", device);
+ fprintf(stderr, "%s: cannot open device %s\n",
+ strerror(errno), device);
ret = EXIT_FAILURE;
goto out;
}
--
1.7.0.4
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