regulator: add check index of wm8350->pmic.pdev[]

Ensure that reg is within the bounds of array wm8350->pmic.pdev[]. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
git-mirror · Sep 22, 2009 · 4dee4d4 · 4dee4d4
1 parent 43c1266
commit 4dee4d4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
@@ -1419,6 +1419,8 @@ int wm8350_register_regulator(struct wm8350 *wm8350, int reg,
 {
 	struct platform_device *pdev;
 	int ret;
+	if (reg < 0 || reg >= NUM_WM8350_REGULATORS)
+		return -EINVAL;
 
 	if (wm8350->pmic.pdev[reg])
 		return -EBUSY;