fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
The "hdr.count * sizeof(s32)" multiplication can overflow on 32 bit systems leading to memory corruption. Use array_size() to fix that. Fixes: 322b598b ("fpga: dfl: introduce interrupt trigger setting API") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/YxBAtYCM38dM7yzI@kiliSigned-off-by: Xu Yilun <yilun.xu@intel.com>
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