Messages in this thread Patch in this message | | | Date | Thu, 23 May 2013 17:28:34 +0800 | Subject | [PATCH -next] staging: keucr: remove needless check before usb_free_coherent() | From | Wei Yongjun <> |
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
usb_free_coherent() is safe with NULL addr and this check is not required.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> --- drivers/staging/keucr/usb.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/keucr/usb.c b/drivers/staging/keucr/usb.c index efadfcf..0608a5c 100644 --- a/drivers/staging/keucr/usb.c +++ b/drivers/staging/keucr/usb.c @@ -442,12 +442,9 @@ static void dissociate_dev(struct us_data *us) kfree(us->sensebuf); /* Free the device-related DMA-mapped buffers */ - if (us->cr) - usb_free_coherent(us->pusb_dev, sizeof(*us->cr), us->cr, - us->cr_dma); - if (us->iobuf) - usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, - us->iobuf_dma); + usb_free_coherent(us->pusb_dev, sizeof(*us->cr), us->cr, us->cr_dma); + usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, + us->iobuf_dma); /* Remove our private data from the interface */ usb_set_intfdata(us->pusb_intf, NULL);
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