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Message-Id: <1400428977-10464-1-git-send-email-rickard_strandqvist@spectrumdigital.se> Date: Sun, 18 May 2014 18:02:57 +0200 From: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> To: Bjorn Helgaas <bhelgaas@...gle.com>, Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, Marta Rybczynska <rybczynska@...il.com>, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] pci: hotplug: cpqphp_ctrl.c: Fix for possible null pointer dereference There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> --- drivers/pci/hotplug/cpqphp_ctrl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index 11845b7..a319d07 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -709,7 +709,8 @@ static struct pci_resource *get_max_resource(struct pci_resource **head, u32 siz temp = temp->next; } - temp->next = max->next; + if(temp) + temp->next = max->next; } max->next = NULL; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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