btrfs-progs: Fix getopt on arm platforms

There, 'char' is unsigned, so once assigned '-1' from getopt, it gets
the value 255. Then, it compared to '-1' gives false.

Signed-off-by: Lluis Batlle i Rossell <viric@viric.name>

diff --git a/cmds-scrub.c b/cmds-scrub.c
index e29db27..b864b2b 100644 (file)
--- a/cmds-scrub.c
+++ b/cmds-scrub.c
@@ -1606,7 +1606,7 @@ static int cmd_scrub_status(int argc, char **argv)
        int i;
        int print_raw = 0;
        int do_stats_per_dev = 0;
-       char c;
+       int c;
        char fsid[37];
        int fdres = -1;
        int err = 0;

diff --git a/cmds-send.c b/cmds-send.c
index 29a7dd3..ac1d3cf 100644 (file)
--- a/cmds-send.c
+++ b/cmds-send.c
@@ -416,7 +416,7 @@ out:
 int cmd_send_start(int argc, char **argv)
 {
        char *subvol = NULL;
-       char c;
+       int c;
        int ret;
        char *outname = NULL;
        struct btrfs_send send;