Merge tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two small cifs fixes for stable (including an important handle leak
  fix) and three small cleanup patches"

* tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: style: replace one-element array with flexible-array
  cifs: connect: style: Simplify bool comparison
  fs: cifs: remove unneeded variable in smb3_fs_context_dup
  cifs: fix interrupted close commands
  cifs: check pointer before freeing

fs/cifs/connect.c

@@ -3740,7 +3740,7 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 
 	if (!ses->binding) {
 		ses->capabilities = server->capabilities;
-		if (linuxExtEnabled == 0)
+		if (!linuxExtEnabled)
 			ses->capabilities &= (~server->vals->cap_unix);
 
 		if (ses->auth_key.response) {

fs/cifs/dfs_cache.c

@@ -1260,7 +1260,8 @@ void dfs_cache_del_vol(const char *fullpath)
 	vi = find_vol(fullpath);
 	spin_unlock(&vol_list_lock);
 
-	kref_put(&vi->refcnt, vol_release);
+	if (!IS_ERR(vi))
+		kref_put(&vi->refcnt, vol_release);
 }
 
 /**

fs/cifs/fs_context.c

@@ -303,8 +303,6 @@ do {									\
 int
 smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx)
 {
-	int rc = 0;
-
 	memcpy(new_ctx, ctx, sizeof(*ctx));
 	new_ctx->prepath = NULL;
 	new_ctx->mount_options = NULL;
@@ -327,7 +325,7 @@ smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx
 	DUP_CTX_STR(nodename);
 	DUP_CTX_STR(iocharset);
 
-	return rc;
+	return 0;
 }
 
 static int

fs/cifs/smb2pdu.c

@@ -3248,7 +3248,7 @@ __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
 	free_rsp_buf(resp_buftype, rsp);
 
 	/* retry close in a worker thread if this one is interrupted */
-	if (rc == -EINTR) {
+	if (is_interrupt_error(rc)) {
 		int tmp_rc;
 
 		tmp_rc = smb2_handle_cancelled_close(tcon, persistent_fid,

fs/cifs/smb2pdu.h

@@ -424,7 +424,7 @@ struct smb2_rdma_transform_capabilities_context {
 	__le16	TransformCount;
 	__u16	Reserved1;
 	__u32	Reserved2;
-	__le16	RDMATransformIds[1];
+	__le16	RDMATransformIds[];
 } __packed;
 
 /* Signing algorithms */