From: Keith Busch <kbusch@kernel.org>
Date: Thu, 26 Jan 2023 21:51:25 +0000 (-0800)
Subject: dmapool: create/destroy cleanup
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=471dd6a440e26d7ea3f519a4c008150bab83c8e3;p=users%2Fjedix%2Flinux-maple.git

dmapool: create/destroy cleanup

Set the 'empty' bool directly from the result of the function that
determines its value instead of adding additional logic.

Link: https://lkml.kernel.org/r/20230126215125.4069751-13-kbusch@meta.com
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/dmapool.c b/mm/dmapool.c
index bb8893b4f4b9..1920890ff8d3 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -226,7 +226,7 @@ struct dma_pool *dma_pool_create(const char *name, struct device *dev,
 {
 	struct dma_pool *retval;
 	size_t allocation;
-	bool empty = false;
+	bool empty;
 
 	if (!dev)
 		return NULL;
@@ -276,8 +276,7 @@ struct dma_pool *dma_pool_create(const char *name, struct device *dev,
 	 */
 	mutex_lock(&pools_reg_lock);
 	mutex_lock(&pools_lock);
-	if (list_empty(&dev->dma_pools))
-		empty = true;
+	empty = list_empty(&dev->dma_pools);
 	list_add(&retval->pools, &dev->dma_pools);
 	mutex_unlock(&pools_lock);
 	if (empty) {
@@ -350,7 +349,7 @@ static struct dma_page *pool_alloc_page(struct dma_pool *pool, gfp_t mem_flags)
 void dma_pool_destroy(struct dma_pool *pool)
 {
 	struct dma_page *page, *tmp;
-	bool empty = false, busy = false;
+	bool empty, busy = false;
 
 	if (unlikely(!pool))
 		return;
@@ -358,8 +357,7 @@ void dma_pool_destroy(struct dma_pool *pool)
 	mutex_lock(&pools_reg_lock);
 	mutex_lock(&pools_lock);
 	list_del(&pool->pools);
-	if (list_empty(&pool->dev->dma_pools))
-		empty = true;
+	empty = list_empty(&pool->dev->dma_pools);
 	mutex_unlock(&pools_lock);
 	if (empty)
 		device_remove_file(pool->dev, &dev_attr_pools);