net: zydas: remove needless check before usb_free_coherent()

Message ID 20200630070404.8207-1-vulab@iscas.ac.cn
State New
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Series
  • net: zydas: remove needless check before usb_free_coherent()
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Commit Message

Xu Wang June 30, 2020, 7:04 a.m.
From: Xu Wang <vulab@iscas.ac.cn>

usb_free_coherent() is safe with NULL addr and this check is
not required.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
---
 drivers/net/wireless/zydas/zd1211rw/zd_usb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

Patch

diff --git a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
index 8ff0374126e4..65b5985ad402 100644
--- a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
@@ -600,9 +600,7 @@  void zd_usb_disable_int(struct zd_usb *usb)
 	dev_dbg_f(zd_usb_dev(usb), "urb %p killed\n", urb);
 	usb_free_urb(urb);
 
-	if (buffer)
-		usb_free_coherent(udev, USB_MAX_EP_INT_BUFFER,
-				  buffer, buffer_dma);
+	usb_free_coherent(udev, USB_MAX_EP_INT_BUFFER, buffer, buffer_dma);
 }
 
 static void handle_rx_packet(struct zd_usb *usb, const u8 *buffer,