netdev - [PATCH net] octeontx2-af: fix the double free in rvu_npc

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Message-Id: <20240424022724.144587-1-suhui@nfschina.com>
Date: Wed, 24 Apr 2024 10:27:25 +0800
From: Su Hui <suhui@...china.com>
To: sgoutham@...vell.com,
	lcherian@...vell.com,
	gakula@...vell.com,
	jerinj@...vell.com,
	hkelam@...vell.com,
	sbhatta@...vell.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	nathan@...nel.org,
	ndesaulniers@...gle.com,
	morbo@...gle.com,
	justinstitt@...gle.com
Cc: Su Hui <suhui@...china.com>,
	sumang@...vell.com,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev,
	kernel-janitors@...r.kernel.org
Subject: [PATCH net] octeontx2-af: fix the double free in rvu_npc_freemem()

Clang static checker(scan-build) warning：
drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:line 2184, column 2
Attempt to free released memory.

npc_mcam_rsrcs_deinit() has released 'mcam->counters.bmap'. Deleted this
redundant kfree() to fix this double free problem.

Fixes: dd7842878633 ("octeontx2-af: Add new devlink param to configure maximum usable NIX block LFs")
Signed-off-by: Su Hui <suhui@...china.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index be709f83f331..e8b73b9d75e3 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -2181,7 +2181,6 @@ void rvu_npc_freemem(struct rvu *rvu)
 
 	kfree(pkind->rsrc.bmap);
 	npc_mcam_rsrcs_deinit(rvu);
-	kfree(mcam->counters.bmap);
 	if (rvu->kpu_prfl_addr)
 		iounmap(rvu->kpu_prfl_addr);
 	else
-- 
2.30.2