USB: yurex: remove needless check before usb_free_coherent()

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

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

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20200810020802.9082-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Xu Wang and committed by

Greg Kroah-Hartman 5 years ago 4d671957 1100395d

+2 -4

1 changed file

expand all

drivers

usb

misc

yurex.c

+2 -4

drivers/usb/misc/yurex.c

··· 96 96 if (dev->cntl_urb) { 97 97 usb_kill_urb(dev->cntl_urb); 98 98 kfree(dev->cntl_req); 99 - if (dev->cntl_buffer) 100 - usb_free_coherent(dev->udev, YUREX_BUF_SIZE, 99 + usb_free_coherent(dev->udev, YUREX_BUF_SIZE, 101 100 dev->cntl_buffer, dev->cntl_urb->transfer_dma); 102 101 usb_free_urb(dev->cntl_urb); 103 102 } 104 103 if (dev->urb) { 105 104 usb_kill_urb(dev->urb); 106 - if (dev->int_buffer) 107 - usb_free_coherent(dev->udev, YUREX_BUF_SIZE, 105 + usb_free_coherent(dev->udev, YUREX_BUF_SIZE, 108 106 dev->int_buffer, dev->urb->transfer_dma); 109 107 usb_free_urb(dev->urb); 110 108 }