UPSTREAM: usb: dwc2: Use kmem_cache_free()

Here, free memory is allocated using kmem_cache_zalloc.  So, use
kmem_cache_free instead of kfree.

This is done using Coccinelle and semantic patch used
is as follows:

//<smpl>
@@
expression x,E,c;
@@
 x =
\(kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\)(c,...)
 ... when != x = E
     when != &x
?-kfree(x)
+kmem_cache_free(c,x)
//</smpl>

Change-Id: I41fee7d3451196cc04d99104ecb7f4e7f84df3c9
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
(cherry picked from commit 9bbe91a1ea4cae20ff9f8f175c92e1e49b4296d9)

diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c
index 2ff517a0210fcfb2cc39b560230cdc90108b964b..27350d0b1c505493fa1835b16e168f8142751414 100644 (file)
--- a/drivers/usb/dwc2/hcd_ddma.c
+++ b/drivers/usb/dwc2/hcd_ddma.c
@@ -111,7 +111,7 @@ static int dwc2_desc_list_alloc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
                dma_unmap_single(hsotg->dev, qh->desc_list_dma,
                                 qh->desc_list_sz,
                                 DMA_FROM_DEVICE);
-               kfree(qh->desc_list);
+               kmem_cache_free(desc_cache, qh->desc_list);
                qh->desc_list = NULL;
                return -ENOMEM;
        }