linux-kernel - [PATCH] amd/pds_core: core: No need for Null pointer check before kfree

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Message-Id: <20231024182051.48513-1-bragathemanick0908@gmail.com>
Date:   Tue, 24 Oct 2023 23:50:51 +0530
From:   Bragatheswaran Manickavel <bragathemanick0908@...il.com>
To:     shannon.nelson@....com, brett.creeley@....com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc:     Bragatheswaran Manickavel <bragathemanick0908@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] amd/pds_core: core: No need for Null pointer check before kfree

kfree()/vfree() internally perform NULL check on the
pointer handed to it and take no action if it indeed is
NULL. Hence there is no need for a pre-check of the memory
pointer before handing it to kfree()/vfree().

Issue reported by ifnullfree.cocci Coccinelle semantic
patch script.

Signed-off-by: Bragatheswaran Manickavel <bragathemanick0908@...il.com>
---
 drivers/net/ethernet/amd/pds_core/core.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c
index 2a8643e167e1..0d2091e9eb28 100644
--- a/drivers/net/ethernet/amd/pds_core/core.c
+++ b/drivers/net/ethernet/amd/pds_core/core.c
@@ -152,11 +152,8 @@ void pdsc_qcq_free(struct pdsc *pdsc, struct pdsc_qcq *qcq)
 		dma_free_coherent(dev, qcq->cq_size,
 				  qcq->cq_base, qcq->cq_base_pa);
 
-	if (qcq->cq.info)
-		vfree(qcq->cq.info);
-
-	if (qcq->q.info)
-		vfree(qcq->q.info);
+	vfree(qcq->cq.info);
+	vfree(qcq->q.info);
 
 	memset(qcq, 0, sizeof(*qcq));
 }
-- 
2.34.1