[PATCH 10/12] OMAP3+: VP: update_errorgain(): return error if VP

[Kevin Hilman]

Add check for valid VP in omap_vp_update_errorgain()

Signed-off-by: Kevin Hilman <khilman at ti.com>
---
 arch/arm/mach-omap2/vp.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c
index 3807620..29698ac 100644
--- a/arch/arm/mach-omap2/vp.c
+++ b/arch/arm/mach-omap2/vp.c
@@ -103,6 +103,9 @@ int omap_vp_update_errorgain(struct voltagedomain *voltdm,
 {
 	struct omap_volt_data *volt_data;
 
+	if (!voltdm->vp)
+		return -EINVAL;
+
 	/* Get volt_data corresponding to target_volt */
 	volt_data = omap_voltage_get_voltdata(voltdm, target_volt);
 	if (IS_ERR(volt_data))
-- 
1.7.6