linux-kernel - [PATCH] USB: Removing NULL check for pool since dma_pool

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Date:   Sat, 4 Aug 2018 00:10:22 -0700
From:   Salil Kapur <salilkapur93@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] USB: Removing NULL check for pool since dma_pool_destroy is
 safe

Removing NULL check for pool since dma_pool_destroy is safe

Signed-off-by: Salil Kapur <salilkapur93@...il.com>
---
 drivers/usb/core/buffer.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 77eef8acff94..f641342cdec0 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -101,12 +101,8 @@ void hcd_buffer_destroy(struct usb_hcd *hcd)
         return;
 
     for (i = 0; i < HCD_BUFFER_POOLS; i++) {
-        struct dma_pool *pool = hcd->pool[i];
-
-        if (pool) {
-            dma_pool_destroy(pool);
-            hcd->pool[i] = NULL;
-        }
+        dma_pool_destroy(hcd->pool[i]);
+        hcd->pool[i] = NULL;
     }
 }
 
-- 
2.14.4