diff mbox series

[2/3] powercap: arm_scmi: Fix signedness bug in probe

Message ID 20220817105424.3124006-3-cristian.marussi@arm.com (mailing list archive)
State New, archived
Headers show
Series Add ARM SCMI Powercap driver | expand

Commit Message

Cristian Marussi Aug. 17, 2022, 10:54 a.m. UTC 
From: Dan Carpenter <dan.carpenter@oracle.com>

The "pr->num_zones" variable is an unsigned int so it can't be less than
zero.

Fixes: 31afdd34f2b9 ("powercap: arm_scmi: Add SCMI powercap based driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/powercap/arm_scmi_powercap.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/powercap/arm_scmi_powercap.c b/drivers/powercap/arm_scmi_powercap.c
index 9f3b8386b4d8..dc26cbb32b35 100644
--- a/drivers/powercap/arm_scmi_powercap.c
+++ b/drivers/powercap/arm_scmi_powercap.c
@@ -425,11 +425,12 @@  static int scmi_powercap_probe(struct scmi_device *sdev)
 	if (!pr)
 		return -ENOMEM;
 
-	pr->num_zones = powercap_ops->num_domains_get(ph);
-	if (pr->num_zones < 0) {
+	ret = powercap_ops->num_domains_get(ph);
+	if (ret < 0) {
 		dev_err(dev, "number of powercap domains not found\n");
-		return pr->num_zones;
+		return ret;
 	}
+	pr->num_zones = ret;
 
 	pr->spzones = devm_kcalloc(dev, pr->num_zones,
 				   sizeof(*pr->spzones), GFP_KERNEL);