[GFS2] Finally get ref counting correct

The last patch missed some other instances of incorrect ref counting,
this fixes all of those too.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index cadfef1..0b26d6a 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -196,7 +196,6 @@
 
 void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
 {
-	up_read(&sdp->sd_log_flush_lock);
 
 	gfs2_log_lock(sdp);
 	sdp->sd_log_blks_free += blks;
@@ -204,6 +203,7 @@
 	gfs2_assert_withdraw(sdp,
 			     sdp->sd_log_blks_free <= sdp->sd_jdesc->jd_blocks);
 	gfs2_log_unlock(sdp);
+	up_read(&sdp->sd_log_flush_lock);
 }
 
 static uint64_t log_bmap(struct gfs2_sbd *sdp, unsigned int lbn)