MISRA 2004, Rule 14.7: "A function shall have a single point of exit at the end of the function.", required - https://www.ibm.com/docs/en/rtr/9.0.0?topic=review-code-misr...

MISRA 2012, Rule 15.5: "Only one exit point should be defined in a function.", advisory - https://www.ibm.com/docs/en/rtr/9.0.0?topic=review-code-misr...

HN users cordenr and bfrog say it was dropped in MISRA 2023: https://news.ycombinator.com/item?id=38680587 and https://news.ycombinator.com/item?id=38704631 . Both in a recent thread on MISRA 2023 at https://news.ycombinator.com/item?id=38674158 .

FWIW, HN user FirmwareBurner in that thread links to the "Embedded System development Coding Reference guide" version 3.0 (2018) from the Software Reliability Enhancement Center, Japan at https://www.ipa.go.jp/publish/qv6pgp00000011mh-att/000065271... which says

  M3.1.5:
   A function shall end with one return statement.
   A return statement to return in the middle of processing shall
   be written only in case of recovery from abnormality.