staging: wilc1000: use memdup_user
This patch replaces the kmalloc followed by copy_from_user by the wrapper routine memdup_user. Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -2459,16 +2459,10 @@ int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
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size = wrq->u.data.length;
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if (size && wrq->u.data.pointer) {
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buff = kmalloc(size, GFP_KERNEL);
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if (!buff) {
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s32Error = -ENOMEM;
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goto done;
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}
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if (copy_from_user
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(buff, wrq->u.data.pointer,
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wrq->u.data.length)) {
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s32Error = -EFAULT;
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buff = memdup_user(wrq->u.data.pointer, wrq->u.data.length);
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if (IS_ERR(buff)) {
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s32Error = PTR_ERR(buff);
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goto done;
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}
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