dmaengine: stm32: dmamux: fix device leak on route allocation

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-71186 · Microsoft / collected KEV context

cve-program · CVE-2025-71186

• https://git.kernel.org/stable/c/3b42020e6790a5e19b36c187ed5b488a5716f97f
• https://git.kernel.org/stable/c/6393da54dcb3488c080a183c4182ddec71ba8d7f
• https://git.kernel.org/stable/c/1dda2a32303df0091896b01a9d09070d61fa344c
• https://git.kernel.org/stable/c/1a179ac01ff3993ab97e33cc77c316ed7415cda1
• https://git.kernel.org/stable/c/2fb10259d4efb4367787b5ae9c94192e8a91c648
• https://git.kernel.org/stable/c/3ef52d31cce8ba816739085a61efe07b63c6cf27
• https://git.kernel.org/stable/c/dd6e4943889fb354efa3f700e42739da9bddb6ef

No related operational record is retained in the current change model.