Use sysfs_emit() instead of the sprintf() for sysfs entries. sysfs_emit() knows the maximum of the temporary buffer used for outputting sysfs content and avoids overrunning the buffer length. Signed-off-by: Like Xu <likexu@tencent.com> Link: https://lore.kernel.org/r/20230625073438.57427-1-likexu@tencent.com Signed-off-by: Sean Christopherson <seanjc@google.com>