btrfs-progs: dev stats: adjust some error messages

- use commonly used ioctl name spelling
- more specific error message after reading device info

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/cmds-device.c b/cmds-device.c
index 392e37c..0b25207 100644 (file)
--- a/cmds-device.c
+++ b/cmds-device.c
@@ -419,7 +419,7 @@ static int cmd_device_stats(int argc, char **argv)
 
        ret = get_fs_info(dev_path, &fi_args, &di_args);
        if (ret) {
-               error("getting dev info for devstats failed: %s",
+               error("getting device info for %s failed: %s", dev_path,
                        strerror(-ret));
                err = 1;
                goto out;
@@ -443,7 +443,7 @@ static int cmd_device_stats(int argc, char **argv)
                args.flags = flags;
 
                if (ioctl(fdmnt, BTRFS_IOC_GET_DEV_STATS, &args) < 0) {
-                       error("DEV_STATS ioctl failed on %s: %s",
+                       error("device stats ioctl failed on %s: %s",
                              path, strerror(errno));
                        err |= 1;
                } else {