thermal: tegra: fix memory allocation

Fix memory allocation to store the pointers to
thermal_zone_device.

Signed-off-by: Wei Ni <wni@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/tegra/soctherm.c

@@ -1329,7 +1329,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev)
 	}
 
 	tegra->thermctl_tzs = devm_kcalloc(&pdev->dev,
-					   soc->num_ttgs, sizeof(*z),
+					   soc->num_ttgs, sizeof(z),
 					   GFP_KERNEL);
 	if (!tegra->thermctl_tzs)
 		return -ENOMEM;