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authorQu Wenruo <quwenruo@cn.fujitsu.com>2014-04-08 17:16:02 +0800
committerDavid Sterba <dsterba@suse.cz>2014-04-22 14:34:27 +0200
commitccd14cbf62026fd84113bcf886732fcc3391cb5b (patch)
tree221f0705c8e208c67d590607dd19e9cdfa9bd265 /cmds-filesystem.c
parent30156b749bd7ceeec3f75f676c07aedafd26799c (diff)
btrfs-progs: Fix the return value of btrfs_scan_kernel()
btrfs_scan_kernel() is only used in 'btrfs fi show' but returns wrong return value. When search parameter is passed, it will never return 0 even the search can be matched. This patch will change the whatever strange logic to a more easy to understand one using 'found' var. Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Cc: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'cmds-filesystem.c')
-rw-r--r--cmds-filesystem.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index bd9ba667..306f7154 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -444,6 +444,7 @@ static int check_arg_type(char *input)
static int btrfs_scan_kernel(void *search)
{
int ret = 0, fd;
+ int found = 0;
FILE *f;
struct mntent *mnt;
struct btrfs_ioctl_fs_info_args fs_info_arg;
@@ -466,7 +467,6 @@ static int btrfs_scan_kernel(void *search)
if (get_label_mounted(mnt->mnt_dir, label)) {
kfree(dev_info_arg);
- ret = 1;
goto out;
}
if (search && !match_search_item_kernel(fs_info_arg.fsid,
@@ -481,19 +481,16 @@ static int btrfs_scan_kernel(void *search)
space_info_arg, label, mnt->mnt_dir);
kfree(space_info_arg);
memset(label, 0, sizeof(label));
+ found = 1;
}
if (fd != -1)
close(fd);
kfree(dev_info_arg);
- if (search)
- ret = 0;
}
- if (search)
- ret = 1;
out:
endmntent(f);
- return ret;
+ return !found;
}
static int dev_to_fsid(char *dev, __u8 *fsid)