From: Kiran Gunda <kgunda@codeaurora.org>
To: gregkh@linuxfoundation.org, sboyd@codeaurora.org,
Kiran Gunda <kgunda@codeaurora.org>,
Abhijeet Dharmapurikar <adharmap@codeaurora.org>,
David Collins <collinsd@codeaurora.org>,
linux-kernel@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org
Subject: [PATCH V1 10/12] spmi: pmic-arb: fix a possible null pointer dereference
Date: Thu, 20 Jul 2017 13:01:48 +0530 [thread overview]
Message-ID: <1500535910-28705-11-git-send-email-kgunda@codeaurora.org> (raw)
In-Reply-To: <1500535910-28705-1-git-send-email-kgunda@codeaurora.org>
If "core" memory resource is not specified, then the driver could
end up dereferencing a null pointer. Fix this issue.
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/spmi/spmi-pmic-arb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index d997449..c585e06 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -955,14 +955,14 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb->spmic = ctrl;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
- pmic_arb->core_size = resource_size(res);
-
core = devm_ioremap_resource(&ctrl->dev, res);
if (IS_ERR(core)) {
err = PTR_ERR(core);
goto err_put_ctrl;
}
+ pmic_arb->core_size = resource_size(res);
+
pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
sizeof(*pmic_arb->ppid_to_apid),
GFP_KERNEL);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2017-07-20 7:33 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-20 7:31 [PATCH V1 00/12]: spmi: pmic-arb: Support for HW v5 and other fixes Kiran Gunda
2017-07-20 7:31 ` [PATCH V1 01/12] spmi: pmic-arb: remove the read/write access checks Kiran Gunda
2017-07-20 7:31 ` [PATCH V1 02/12] spmi: pmic-arb: rename pa_xx to pmic_arb_xx and other cleanup Kiran Gunda
2017-07-28 0:00 ` Stephen Boyd
2017-07-28 5:54 ` kgunda
2017-07-20 7:31 ` [PATCH V1 03/12] spmi: pmic-arb: clean up pmic_arb_find_apid function Kiran Gunda
2017-07-28 1:18 ` Stephen Boyd
2017-07-28 5:33 ` kgunda
2017-07-20 7:31 ` [PATCH V1 04/12] spmi: pmic-arb: optimize qpnpint_irq_set_type function Kiran Gunda
2017-07-27 23:46 ` Stephen Boyd
2017-07-20 7:31 ` [PATCH V1 05/12] spmi: pmic-arb: fix memory allocation for mapping_table Kiran Gunda
2017-07-27 23:49 ` Stephen Boyd
2017-07-28 0:01 ` Stephen Boyd
2017-07-28 5:32 ` kgunda
2017-07-20 7:31 ` [PATCH V1 06/12] spmi: pmic-arb: replace the writel_relaxed with __raw_writel Kiran Gunda
2017-07-28 0:01 ` Stephen Boyd
2017-07-28 5:34 ` kgunda
2017-07-20 7:31 ` [PATCH V1 07/12] spmi: pmic-arb: return the value instead of passing by pointer Kiran Gunda
2017-07-20 7:31 ` [PATCH V1 08/12] spmi: pmic-arb: use irq_chip callback to set spmi irq wakeup capability Kiran Gunda
2017-07-20 7:31 ` [PATCH V1 09/12] spmi: pmic-arb: return __iomem pointer instead of offset Kiran Gunda
2017-07-20 7:31 ` Kiran Gunda [this message]
2017-07-20 7:31 ` [PATCH V1 11/12] spmi: pmic-arb: add support for HW version 5 Kiran Gunda
2017-07-20 7:31 ` [PATCH V1 12/12] spmi: pmic-arb: Remove checking opc value not less than 0 Kiran Gunda
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