thunderbolt: Fix compile warning

11 jobs for <span class="ref-name">thunderbolt-compile-warning</span> in 6 minutes and 7 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #140246
build

00:01:59

 
  Test
passed #140248
asan

00:02:18

passed #140247
test

00:01:49

 
  Manual
manual #140253
allowed to fail manual
armv8
manual #140249
allowed to fail manual
flatpak
manual #140252
allowed to fail manual
msan
manual #140254
allowed to fail manual
ppc64le
manual #140250
allowed to fail manual
tsan
manual #140251
allowed to fail manual
ubsan
 
  Review
manual #140255
allowed to fail manual
review
manual #140256
allowed to fail manual
stop_review