btrfs-progs: send-stream: change length type to unsigned

The command length is unsigned, use the right type, also to make the
length checks work.

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

diff --git a/send-stream.c b/send-stream.c
index 450854f..31e9a7b 100644 (file)
--- a/send-stream.c
+++ b/send-stream.c
@@ -71,11 +71,11 @@ static int read_cmd(struct btrfs_send_stream *sctx)
 {
        int ret;
        int cmd;
-       int cmd_len;
+       u32 cmd_len;
        int tlv_type;
        int tlv_len;
        char *data;
-       int pos;
+       u32 pos;
        struct btrfs_tlv_header *tlv_hdr;
        u32 crc;
        u32 crc2;
@@ -98,7 +98,7 @@ static int read_cmd(struct btrfs_send_stream *sctx)
 
        if (cmd_len + sizeof(*sctx->cmd_hdr) >= sizeof(sctx->read_buf)) {
                ret = -EINVAL;
-               error("command length %d too big for buffer %zu",
+               error("command length %u too big for buffer %zu",
                                cmd_len, sizeof(sctx->read_buf));
                goto out;
        }