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HID: google: Use struct_size() helper in kzalloc()
Make use of the struct_size() helper instead of an open-coded version, in order to avoid any potential type mistakes or integer overflows that, in the worst scenario, could lead to heap overflows. Also, address the following sparse warnings: drivers/hid/hid-google-hammer.c:61:23: warning: using sizeof on a flexible structure Link: https://github.com/KSPP/linux/issues/174 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -58,7 +58,7 @@ static int cbas_ec_query_base(struct cros_ec_device *ec_dev, bool get_state,
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struct cros_ec_command *msg;
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int ret;
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msg = kzalloc(sizeof(*msg) + max(sizeof(u32), sizeof(*params)),
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msg = kzalloc(struct_size(msg, data, max(sizeof(u32), sizeof(*params))),
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GFP_KERNEL);
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if (!msg)
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return -ENOMEM;
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