From 000e1a43d3d2d4541f10be997c1609b69beb22d5 Mon Sep 17 00:00:00 2001 From: Kiran Gunda Date: Fri, 28 Jul 2017 12:40:45 +0530 Subject: [PATCH] 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 Reviewed-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- 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 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); -- 2.20.1