linux-kernel - [PATCH v4 2/3] x86: pmc_atom: don't check for NULL twice

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Message-Id: <1415812689-17326-3-git-send-email-andriy.shevchenko@linux.intel.com>
Date:	Wed, 12 Nov 2014 19:18:08 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	"H . Peter Anvin" <hpa@...ux.intel.com>, x86@...nel.org,
	Aubrey Li <aubrey.li@...ux.intel.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
	"Kumar P, Mahesh" <mahesh.kumar.p@...el.com>,
	linux-kernel@...r.kernel.org
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v4 2/3] x86: pmc_atom: don't check for NULL twice

debugfs_remove_recursive() is NULL-aware, thus, we may safely remove the check
here. There is no need to assing NULL to variable since it will be not used
anywhere.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Aubrey Li <aubrey.li@...ux.intel.com>
---
 arch/x86/kernel/pmc_atom.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/kernel/pmc_atom.c b/arch/x86/kernel/pmc_atom.c
index 19b8efa..bcc91ea 100644
--- a/arch/x86/kernel/pmc_atom.c
+++ b/arch/x86/kernel/pmc_atom.c
@@ -202,11 +202,7 @@ static const struct file_operations pmc_sleep_tmr_ops = {
 
 static void pmc_dbgfs_unregister(struct pmc_dev *pmc)
 {
-	if (!pmc->dbgfs_dir)
-		return;
-
 	debugfs_remove_recursive(pmc->dbgfs_dir);
-	pmc->dbgfs_dir = NULL;
 }
 
 static int pmc_dbgfs_register(struct pmc_dev *pmc, struct pci_dev *pdev)
-- 
2.1.3

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