pmc_dbgfs_unregister() will be called when pmc->dbgfs_dir is unconditionally
NULL on error path in pmc_dbgfs_register(). To prevent this we move the
assignment to where is should be.
Fixes: f855911c1f48 (x86/pmc_atom: Expose PMC device state and platform sleep state)
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Aubrey Li <aubrey.li@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com>
Link: http://lkml.kernel.org/r/1421253575-22509-2-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
if (!dir)
return -ENOMEM;
+ pmc->dbgfs_dir = dir;
+
f = debugfs_create_file("dev_state", S_IFREG | S_IRUGO,
dir, pmc, &pmc_dev_state_ops);
if (!f) {
dev_err(&pdev->dev, "sleep_state register failed\n");
goto err;
}
- pmc->dbgfs_dir = dir;
+
return 0;
err:
pmc_dbgfs_unregister(pmc);