misc: fastrpc: avoid double fput() on failed usercopy
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.180 by commit 4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215, it was introduced in version v5.1 by commit 6cffd79504ce040f460831030d3069fa1c99bb71. For more details please see the references link.