Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1698541 > unrolled thread

[PATCH V2 10/12] spmi: pmic-arb: fix a possible null pointer dereference

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [PATCH V2 10/12] spmi: pmic-arb: fix a possible null pointer dereference Kiran Gunda <kgunda@codeaurora.org> - 2017-07-28 09:20 +0200

#1698541 — [PATCH V2 10/12] 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>
---
 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 88fe421..bc68e08 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

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web