From: Dan Carpenter <dan.carpenter@oracle.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>,
linux-phy@lists.infradead.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] phy: ti: gmii-sel: check of_get_address() for failure
Date: Tue, 14 Sep 2021 14:00:38 +0300 [thread overview]
Message-ID: <20210914110038.GB11657@kili> (raw)
Smatch complains that if of_get_address() returns NULL, then "size"
isn't initialized. Also it would lead to an Oops.
Fixes: 7f78322cdd67 ("phy: ti: gmii-sel: retrieve ports number and base offset from dt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/phy/ti/phy-gmii-sel.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/phy/ti/phy-gmii-sel.c b/drivers/phy/ti/phy-gmii-sel.c
index 5fd2e8a08bfc..d0ab69750c6b 100644
--- a/drivers/phy/ti/phy-gmii-sel.c
+++ b/drivers/phy/ti/phy-gmii-sel.c
@@ -320,6 +320,8 @@ static int phy_gmii_sel_init_ports(struct phy_gmii_sel_priv *priv)
u64 size;
offset = of_get_address(dev->of_node, 0, &size, NULL);
+ if (!offset)
+ return -EINVAL;
priv->num_ports = size / sizeof(u32);
if (!priv->num_ports)
return -EINVAL;
--
2.20.1
next reply other threads:[~2021-09-14 11:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 11:00 Dan Carpenter [this message]
2021-09-15 9:27 ` [PATCH] phy: ti: gmii-sel: check of_get_address() for failure Grygorii Strashko
2021-10-20 17:27 ` Vinod Koul
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=20210914110038.GB11657@kili \
--to=dan.carpenter@oracle.com \
--cc=grygorii.strashko@ti.com \
--cc=kernel-janitors@vger.kernel.org \
--cc=kishon@ti.com \
--cc=linux-phy@lists.infradead.org \
--cc=vkoul@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).