diff mbox series

[7/7] crypto: caam: no need to check return value of debugfs_create functions

Message ID 20190122151422.14204-8-gregkh@linuxfoundation.org (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: cleanup debugfs usage | expand

Commit Message

Greg Kroah-Hartman Jan. 22, 2019, 3:14 p.m. UTC 
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: "Horia Geantă" <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/caam/ctrl.c   | 21 ++++++---------------
 drivers/crypto/caam/intern.h |  1 -
 2 files changed, 6 insertions(+), 16 deletions(-)

Comments

Horia Geanta Jan. 22, 2019, 3:29 p.m. UTC | #1 
On 1/22/2019 5:14 PM, Greg Kroah-Hartman wrote:
> When calling debugfs functions, there is no need to ever check the
> return value.  The function can work or not, but the code logic should
> never do something different based on this.
> 
> Cc: "Horia Geantă" <horia.geanta@nxp.com>
> Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: linux-crypto@vger.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>

Thanks,
Horia
diff mbox series

Patch

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 16bbc72f041a..87c13fb6028c 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -863,27 +863,18 @@  static int caam_probe(struct platform_device *pdev)
 	/* Internal covering keys (useful in non-secure mode only) */
 	ctrlpriv->ctl_kek_wrap.data = (__force void *)&ctrlpriv->ctrl->kek[0];
 	ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
-	ctrlpriv->ctl_kek = debugfs_create_blob("kek",
-						S_IRUSR |
-						S_IRGRP | S_IROTH,
-						ctrlpriv->ctl,
-						&ctrlpriv->ctl_kek_wrap);
+	debugfs_create_blob("kek", S_IRUSR | S_IRGRP | S_IROTH, ctrlpriv->ctl,
+			    &ctrlpriv->ctl_kek_wrap);
 
 	ctrlpriv->ctl_tkek_wrap.data = (__force void *)&ctrlpriv->ctrl->tkek[0];
 	ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
-	ctrlpriv->ctl_tkek = debugfs_create_blob("tkek",
-						 S_IRUSR |
-						 S_IRGRP | S_IROTH,
-						 ctrlpriv->ctl,
-						 &ctrlpriv->ctl_tkek_wrap);
+	debugfs_create_blob("tkek", S_IRUSR | S_IRGRP | S_IROTH, ctrlpriv->ctl,
+			    &ctrlpriv->ctl_tkek_wrap);
 
 	ctrlpriv->ctl_tdsk_wrap.data = (__force void *)&ctrlpriv->ctrl->tdsk[0];
 	ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32);
-	ctrlpriv->ctl_tdsk = debugfs_create_blob("tdsk",
-						 S_IRUSR |
-						 S_IRGRP | S_IROTH,
-						 ctrlpriv->ctl,
-						 &ctrlpriv->ctl_tdsk_wrap);
+	debugfs_create_blob("tdsk", S_IRUSR | S_IRGRP | S_IROTH, ctrlpriv->ctl,
+			    &ctrlpriv->ctl_tdsk_wrap);
 #endif
 	return 0;
 
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index babc78abd155..5869ad58d497 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -106,7 +106,6 @@  struct caam_drv_private {
 	struct dentry *dfs_root;
 	struct dentry *ctl; /* controller dir */
 	struct debugfs_blob_wrapper ctl_kek_wrap, ctl_tkek_wrap, ctl_tdsk_wrap;
-	struct dentry *ctl_kek, *ctl_tkek, *ctl_tdsk;
 #endif
 };