linux-kernel - [PATCH] staging: gasket: remove null ptr check before kfree

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Date:   Sun, 12 Aug 2018 03:17:53 +0530
From:   Sumit Kumar <sumit686215@...il.com>
To:     Rob Springer <rspringer@...gle.com>,
        John Joseph <jnjoseph@...gle.com>,
        Ben Chan <benchan@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] staging: gasket: remove null ptr check before kfree

Remove null ptr check before kfree because kfree is null ptr safe.
Issue found by checkpatch.

Signed-off-by: Sumit Kumar <sumit686215@...mple.com>
---
 drivers/staging/gasket/gasket_page_table.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index d4c5f8a..bd921dc 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -1328,10 +1328,8 @@ int gasket_alloc_coherent_memory(struct gasket_dev *gasket_dev, u64 size,
 				  num_pages * PAGE_SIZE, mem, handle);
 	}
 
-	if (gasket_dev->page_table[index]->coherent_pages) {
-		kfree(gasket_dev->page_table[index]->coherent_pages);
-		gasket_dev->page_table[index]->coherent_pages = NULL;
-	}
+	kfree(gasket_dev->page_table[index]->coherent_pages);
+	gasket_dev->page_table[index]->coherent_pages = NULL;
 	gasket_dev->page_table[index]->num_coherent_pages = 0;
 	return -ENOMEM;
 }
-- 
2.7.4