From: Shailendra Verma <shailendra.v-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> To: Mathias Nyman <mathias.nyman-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>, Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>, Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Alexandre Courbot <gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, p.shailesh-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, ashish.kalra-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, Shailendra Verma <shailendra.v-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, Shailendra Verma <shailendra.capricorn-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Subject: [PATCH] Usb: host - Fix possible NULL derefrence. Date: Mon, 30 Jan 2017 10:36:29 +0530 [thread overview] Message-ID: <1485752789-30374-1-git-send-email-shailendra.v@samsung.com> (raw) In-Reply-To: CGME20170130050640epcas2p1f856bc12df5d1ee6b9e0c66cf9dd6339@epcas2p1.samsung.com of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> --- drivers/usb/host/xhci-tegra.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a59fafb..890c778 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -903,6 +903,10 @@ static int tegra_xusb_probe(struct platform_device *pdev) return -ENOMEM; tegra->soc = of_device_get_match_data(&pdev->dev); + if (!tegra->soc) { + dev_err(&pdev->dev, "no device match found\n"); + return -ENODEV; + } mutex_init(&tegra->lock); tegra->dev = &pdev->dev; -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: Shailendra Verma <shailendra.v@samsung.com> To: Mathias Nyman <mathias.nyman@intel.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Stephen Warren <swarren@wwwdotorg.org>, Thierry Reding <thierry.reding@gmail.com>, Alexandre Courbot <gnurou@gmail.com>, linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, p.shailesh@samsung.com, ashish.kalra@samsung.com, Shailendra Verma <shailendra.v@samsung.com>, Shailendra Verma <shailendra.capricorn@gmail.com> Subject: [PATCH] Usb: host - Fix possible NULL derefrence. Date: Mon, 30 Jan 2017 10:36:29 +0530 [thread overview] Message-ID: <1485752789-30374-1-git-send-email-shailendra.v@samsung.com> (raw) In-Reply-To: CGME20170130050640epcas2p1f856bc12df5d1ee6b9e0c66cf9dd6339@epcas2p1.samsung.com of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> --- drivers/usb/host/xhci-tegra.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a59fafb..890c778 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -903,6 +903,10 @@ static int tegra_xusb_probe(struct platform_device *pdev) return -ENOMEM; tegra->soc = of_device_get_match_data(&pdev->dev); + if (!tegra->soc) { + dev_err(&pdev->dev, "no device match found\n"); + return -ENODEV; + } mutex_init(&tegra->lock); tegra->dev = &pdev->dev; -- 1.7.9.5
next parent reply other threads:[~2017-01-30 5:06 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20170130050640epcas2p1f856bc12df5d1ee6b9e0c66cf9dd6339@epcas2p1.samsung.com> 2017-01-30 5:06 ` Shailendra Verma [this message] 2017-01-30 5:06 ` [PATCH] Usb: host - Fix possible NULL derefrence Shailendra Verma [not found] ` <1485752789-30374-1-git-send-email-shailendra.v-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> 2017-01-30 6:45 ` Greg Kroah-Hartman 2017-01-30 6:45 ` Greg Kroah-Hartman [not found] ` <20170130064521.GC4324-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org> 2017-01-30 7:03 ` Thierry Reding 2017-01-30 7:03 ` Thierry Reding 2017-01-30 19:37 ` Greg Kroah-Hartman
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