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crypto: caam - Fix null dereference at error path 

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: 67c2315def ("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>
hifive-unleashed-5.1
Rui Miguel Silva 2018-02-22 14:22:47 +00:00 committed by Herbert Xu
parent 716c7c32ea
commit b85149f6f5
1 changed files with 0 additions and 3 deletions
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3
drivers/crypto/caam/ctrl.c
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@ -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;