net: 9p: fix refcount leak in p9readwork() error handling
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 v5.15.61 by commit 8324649b0035cbb30ebc3ca901540cb392e89041, it was introduced in version v4.20 by commit 728356dedeff8ef999cb436c71333ef4ac51a81c. For more details please see the references link.