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media: flexcop-usb: remove needless check before usb_free_coherent()

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

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Qinglang Miao 2020-09-14 08:15:13 +02:00 committed by Mauro Carvalho Chehab
parent d725d20e81
commit cf580e11fb
1 changed files with 3 additions and 4 deletions
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7
drivers/media/usb/b2c2/flexcop-usb.c
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@ -419,10 +419,9 @@ static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
usb_free_urb(fc_usb->iso_urb[i]);
}
if (fc_usb->iso_buffer != NULL)
usb_free_coherent(fc_usb->udev,
fc_usb->buffer_size, fc_usb->iso_buffer,
fc_usb->dma_addr);
usb_free_coherent(fc_usb->udev, fc_usb->buffer_size,
fc_usb->iso_buffer, fc_usb->dma_addr);
}
static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)