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caif_usb: use strlcpy() instead of strncpy()

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gcc-8 reports

net/caif/caif_usb.c: In function 'cfusbl_device_notify':
./include/linux/string.h:245:9: warning: '__builtin_strncpy' output may
be truncated copying 15 bytes from a string of length 15
[-Wstringop-truncation]

The compiler require that the input param 'len' of strncpy() should be
greater than the length of the src string, so that '\0' is copied as
well. We can just use strlcpy() to avoid this warning.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xiongfeng Wang 2018-01-09 19:58:18 +08:00 committed by David S. Miller
parent af60d61fa8
commit b0d55b5bc7
1 changed files with 1 additions and 3 deletions
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4
net/caif/caif_usb.c
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@ -176,9 +176,7 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what,
dev_add_pack(&caif_usb_type);
pack_added = true;
strncpy(layer->name, dev->name,
sizeof(layer->name) - 1);
layer->name[sizeof(layer->name) - 1] = 0;
strlcpy(layer->name, dev->name, sizeof(layer->name));
return 0;
}