From f8a33a209498b32b0fc06d80baa071f0902b9a85 Mon Sep 17 00:00:00 2001
From: Martin Jansa <Martin.Jansa@gmail.com>
Date: Tue, 30 Nov 2021 06:45:34 -0800
Subject: [PATCH] vm-support: fix build for kernel's > 5.15

* remove callback was changed to return void instead of int in:
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc7a6209d5710618eb4f72a77cd81b8d694ecf89

Upstream-Status: Inappropriate [embedded specific]

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 uxenplatform/platform.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/uxenplatform/platform.c b/uxenplatform/platform.c
index 99fc76a..5225a00 100644
--- a/uxenplatform/platform.c
+++ b/uxenplatform/platform.c
@@ -4,6 +4,7 @@
 #include <linux/random.h>
 #include <linux/kthread.h>
 #include <linux/delay.h>
+#include <linux/version.h>
 
 #include <uxen-hypercall.h>
 #include <uxen-platform.h>
@@ -32,14 +33,20 @@ static int bus_probe(struct device *_dev)
     return drv && drv->probe ? drv->probe(dev) : -ENODEV;
 }
 
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,15,0))
 static int bus_remove(struct device *_dev)
+#else
+static void bus_remove(struct device *_dev)
+#endif
 {
     struct uxen_device *dev = dev_to_uxen(_dev);
     struct uxen_driver *drv = drv_to_uxen(_dev->driver);
 
     if (dev && drv && drv->remove)
        drv->remove(dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,15,0))
     return 0;
+#endif
 }
 
 static int bus_suspend(struct device *_dev, pm_message_t state)