Prevent SmartReflex driver driver from loading if OPP tables are
not defined by platform. This removes possibility of NULL pointer
reference in SmartReflex driver code.
Signed-off-by: Roger Quadros <ext-roger.quadros@xxxxxxxxx>
---
arch/arm/mach-omap2/smartreflex.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index b032366..4823ce8 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -852,6 +852,12 @@ static int __init omap3_sr_init(void)
int ret = 0;
u8 RdReg;
+ /* Exit if OPP tables are not defined */
+ if (!(mpu_opps && l3_opps)) {
+ pr_err("SR: OPP rate tables not defined for platform, not enabling SmartReflex\n");
+ return -ENODEV;
+ }
+
/* Enable SR on T2 */
ret = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &RdReg,
R_DCDC_GLOBAL_CFG);
--
1.6.0.4
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