Merge "msm: kgsl: Perform cache flush on the pages obtained using get_user_pages()"

drivers/gpu/msm/kgsl.c

@@ -1,4 +1,5 @@
 /* Copyright (c) 2008-2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -2179,6 +2180,15 @@ static int memdesc_sg_virt(struct kgsl_memdesc *memdesc, unsigned long useraddr)
 
 	ret = sg_alloc_table_from_pages(memdesc->sgt, pages, npages,
 					0, memdesc->size, GFP_KERNEL);
+
+	if (ret)
+		goto out;
+
+	ret = kgsl_cache_range_op(memdesc, 0, memdesc->size,
+			KGSL_CACHE_OP_FLUSH);
+
+	if (ret)
+		sg_free_table(memdesc->sgt);
 out:
 	if (ret) {
 		for (i = 0; i < npages; i++)