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 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy
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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: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-14 11:00 Dan Carpenter [this message] 2021-09-14 11:00 ` [PATCH] phy: ti: gmii-sel: check of_get_address() for failure Dan Carpenter 2021-09-15 9:27 ` Grygorii Strashko 2021-09-15 9:27 ` Grygorii Strashko 2021-10-20 17:27 ` Vinod Koul 2021-10-20 17:27 ` Vinod Koul
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