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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
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
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>
This commit is contained in:
Keith Busch 2023-01-26 13:51:25 -08:00 committed by Andrew Morton
parent adef080382
commit 9f297db356
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
mm/dmapool.c
View File

@ -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) {
@ -361,7 +360,7 @@ 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;
@ -369,8 +368,7 @@ 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);