From b85149f6f5d5a9279f29a73b2e95342f4d465e73 Mon Sep 17 00:00:00 2001
From: Rui Miguel Silva <rui.silva@linaro.org>
Date: Thu, 22 Feb 2018 14:22:47 +0000
Subject: [PATCH] crypto: caam - Fix null dereference at error path
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caam_remove already removes the debugfs entry, so we need to remove the one
immediately before calling caam_remove.
This fix a NULL dereference at error paths is caam_probe fail.
Fixes: 67c2315def06 ("crypto: caam - add Queue Interface (QI) backend support")
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Cc: "Horia Geantă" <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Cc: <stable@vger.kernel.org> # 4.12+
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/crypto/caam/ctrl.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index e843cf410373..361e750f9cba 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -815,9 +815,6 @@ static int caam_probe(struct platform_device *pdev)
return 0;
caam_remove:
-#ifdef CONFIG_DEBUG_FS
- debugfs_remove_recursive(ctrlpriv->dfs_root);
-#endif
caam_remove(pdev);
return ret;