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staging: r8188eu: fix a gcc warning

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Replace strncpy with strlcpy to fix the following gcc warning.

drivers/staging/r8188eu/os_dep/ioctl_linux.c: In function 'rtw_wx_set_enc_ext':
drivers/staging/r8188eu/os_dep/ioctl_linux.c:1929:9: warning: 'strncpy' specified bound 16 equals destination size [-Wstringop-truncation]
 1929 |         strncpy((char *)param->u.crypt.alg, alg_name, IEEE_CRYPT_ALG_NAME_LEN);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The destination buffer size is IEEE_CRYPT_ALG_NAME_LEN and the length
of the string to copy is always < IEEE_CRYPT_ALG_NAME_LEN. So strlcpy
will never truncate the string.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20211018221231.7837-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Straube 2021-10-19 00:12:31 +02:00 committed by Greg Kroah-Hartman
parent 436c7525f3
commit 2d68d8ee8f
1 changed files with 1 additions and 1 deletions
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drivers/staging/r8188eu/os_dep/ioctl_linux.c
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@ -1926,7 +1926,7 @@ static int rtw_wx_set_enc_ext(struct net_device *dev,
return -1; return -1;
} }
strncpy((char *)param->u.crypt.alg, alg_name, IEEE_CRYPT_ALG_NAME_LEN); strlcpy((char *)param->u.crypt.alg, alg_name, IEEE_CRYPT_ALG_NAME_LEN);
if (pext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) if (pext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
param->u.crypt.set_tx = 1; param->u.crypt.set_tx = 1;