From: Wu Hao <hao.wu@intel.com>
Date: Sun, 4 Aug 2019 10:20:18 +0000 (+0800)
Subject: fpga: dfl: make uinit callback optional
X-Git-Tag: v5.4-rc1~133^2~83
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3c51ff772278d291117dae9cad09ddef07e0d504;p=thirdparty%2Fkernel%2Flinux.git

fpga: dfl: make uinit callback optional

This patch makes uinit callback of sub features optional. With
this change, people don't need to prepare any empty uinit callback.

Signed-off-by: Wu Hao <hao.wu@intel.com>
Link: https://lore.kernel.org/r/1564914022-3710-9-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index 87eaef6d2723f..c0512afc4ed71 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -259,7 +259,8 @@ void dfl_fpga_dev_feature_uinit(struct platform_device *pdev)
 
 	dfl_fpga_dev_for_each_feature(pdata, feature)
 		if (feature->ops) {
-			feature->ops->uinit(pdev, feature);
+			if (feature->ops->uinit)
+				feature->ops->uinit(pdev, feature);
 			feature->ops = NULL;
 		}
 }