rbd: give rbd_obj_read_sync() buffer void type

Make the buf parameter into which the data is to be read have type
void pointer.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index ee53d8e528017a539c59f193432aaa49c201b8f1..6436b3ff54703b62496321ce5bf8d517914bec88 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2854,7 +2854,7 @@ static void rbd_free_disk(struct rbd_device *rbd_dev)
 static int rbd_obj_read_sync(struct rbd_device *rbd_dev,
                                const char *object_name,
                                u64 offset, u64 length,
-                               char *buf, u64 *version)
+                               void *buf, u64 *version)
 
 {
        struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
@@ -2957,8 +2957,7 @@ rbd_dev_v1_header_read(struct rbd_device *rbd_dev, u64 *version)
                        return ERR_PTR(-ENOMEM);
 
                ret = rbd_obj_read_sync(rbd_dev, rbd_dev->header_name,
-                                      0, size,
-                                      (char *) ondisk, version);
+                                      0, size, ondisk, version);
                if (ret < 0)
                        goto out_err;
                if (WARN_ON((size_t) ret < size)) {