Please backport d919d027ba2a41df5d51ce82ae7f2fb64d2cba41 to 14.0.0

[steakhal]

d919d02 Fixes a deadlock in the scan-build libear library.
It's just a couple of lines, so it's probably worths the effort backporting.

/CC @AaronBallman @petrhosek You might want to know about this.

[AaronBallman]

The fix certainly looks reasonable to me from my looking at it.

[steakhal]

@tstellar please have a look at this commit.

[tstellar]

/cherry-pick d919d02

[llvmbot]

Failed to cherry-pick: 919d027ba2a41df5d51ce82ae7f2fb64d2cba41

https://github.com/llvm/llvm-project/actions/runs/1826743131

Please manually backport the fix and push it to your github fork. Once this is done, please add a comment like this:

/branch <user>/<repo>/<branch>

[llvmbot]

/branch llvmbot/llvm-project/issue53541