Ensure zio_bad_cksum_t is initialized

This may not strictly be needed but it does keep gcc happy.  We
should keep our eye on this though if the extra bcopy significantly
impacts performance.  It may.

diff --git a/module/zfs/vdev_raidz.c b/module/zfs/vdev_raidz.c
index 64c1564bfdb4f7ed739c4ea45daea261a59292b1..cbabb84020de41dc4dd29e3d387390768ced2a17 100644 (file)
--- a/module/zfs/vdev_raidz.c
+++ b/module/zfs/vdev_raidz.c
@@ -1638,8 +1638,11 @@ raidz_checksum_verify(zio_t *zio)
 {
        zio_bad_cksum_t zbc;
        raidz_map_t *rm = zio->io_vsd;
+       int ret;
 
-       int ret = zio_checksum_error(zio, &zbc);
+       bzero(&zbc, sizeof (zio_bad_cksum_t));
+
+       ret = zio_checksum_error(zio, &zbc);
        if (ret != 0 && zbc.zbc_injected != 0)
                rm->rm_ecksuminjected = 1;