[LU-20007] Wrong proc entry cleared on pool spill proc registration failure

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.18.0
• Severity: 3
• Assignee: Sohei Koyama
• Reporter: Sohei Koyama

Description

In lod_pool_new(), when lprocfs_register() for pool_spill_proc_entry fails, the error handler incorrectly NULLs pool_proc_entry instead of pool_spill_proc_entry:

 

    if (IS_ERR(new_pool->pool_spill_proc_entry)) {
        rc = PTR_ERR(new_pool->pool_spill_proc_entry);
        new_pool->pool_proc_entry = NULL; // should be new_pool->pool_spill_proc_entry = NULL;
        lod_pool_putref(new_pool);
    }