From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Andrew Lunn <andrew@lunn.ch>,
Dan Carpenter <dan.carpenter@oracle.com>,
"David S. Miller" <davem@davemloft.net>,
Igal Liberman <igal.liberman@freescale.com>,
netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH] fsl/fman: Delete one function call "put_device" in dtsec_config()
Date: Thu, 14 Jan 2016 16:00:46 +0100 [thread overview]
Message-ID: <5697B81E.4050303@users.sourceforge.net> (raw)
In-Reply-To: <20160113220923.GE5527@lunn.ch>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 14 Jan 2016 15:46:28 +0100
The Coccinelle semantic patch script "deref_null.cocci" pointed a problem
out in the implementation of the function "dtsec_config".
A null pointer was assigned to the data structure member "tbiphy" of the
variable "dtsec" if a matching device was not found.
A call of the function "put_device" was unnecessary then because
a previous call of the function "get_device" was not triggered.
Thus remove the function call "put_device" after the printing of the
desired error message.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/net/ethernet/freescale/fman/fman_dtsec.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index 6b1261c..7c92eb8 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -1434,7 +1434,6 @@ struct fman_mac *dtsec_config(struct fman_mac_params *params)
dtsec->tbiphy = of_phy_find_device(params->internal_phy_node);
if (!dtsec->tbiphy) {
pr_err("of_phy_find_device (TBI PHY) failed\n");
- put_device(&dtsec->tbiphy->mdio.dev);
goto err_dtsec_drv_param;
}
--
2.6.3
next prev parent reply other threads:[~2016-01-14 15:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-13 21:20 fsl/fman: Clarification for implementation details in dtsec_config() SF Markus Elfring
2016-01-13 21:35 ` Dan Carpenter
2016-01-13 22:09 ` Andrew Lunn
2016-01-14 15:00 ` SF Markus Elfring [this message]
2016-01-14 16:27 ` [PATCH] fsl/fman: Delete one function call "put_device" " Andrew Lunn
2016-01-14 21:51 ` David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5697B81E.4050303@users.sourceforge.net \
--to=elfring@users.sourceforge.net \
--cc=andrew@lunn.ch \
--cc=dan.carpenter@oracle.com \
--cc=davem@davemloft.net \
--cc=igal.liberman@freescale.com \
--cc=julia.lawall@lip6.fr \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).