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authorKiran Gunda <kgunda@codeaurora.org>2017-07-28 12:40:45 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-28 13:51:19 +0200
commit000e1a43d3d2d4541f10be997c1609b69beb22d5 (patch)
tree0dd078ffbf74c6349dce92c8375be3033a788c7d /drivers/spmi
parente95d073c8ce397a8e77c36a208be978060bb214f (diff)
spmi: pmic-arb: fix a possible null pointer dereference
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spmi')
-rw-r--r--drivers/spmi/spmi-pmic-arb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 88fe42180f42..bc68e08ea14e 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);

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