[PM-WIP-OPP] [PATCH 2/2] omap: opp: return error pointers if inactive opp layer

[Nishanth Menon <nm@ti.com>]

Return ERR_PTR pointers back to caller instead of a plain
NULL to allow for callers to do sanity checks.

Cc: Ambresh K <ambresh@ti.com>
Cc: Eduardo Valentin <eduardo.valentin@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/plat-omap/include/plat/opp.h |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/plat-omap/include/plat/opp.h b/arch/arm/plat-omap/include/plat/opp.h
index 33d224c..dc9a0d9 100644
--- a/arch/arm/plat-omap/include/plat/opp.h
+++ b/arch/arm/plat-omap/include/plat/opp.h
@@ -252,31 +252,31 @@ static inline int opp_get_opp_count(struct omap_opp *oppl)
 static inline struct omap_opp *opp_find_freq_exact(struct omap_opp *oppl,
 				     unsigned long freq, bool enabled)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline struct omap_opp *opp_find_freq_floor(struct omap_opp *oppl,
 				     unsigned long *freq)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline struct omap_opp *opp_find_freq_ceil(struct omap_opp *oppl,
 					unsigned long *freq)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline
 struct omap_opp __init *opp_init_list(const struct omap_opp_def *opp_defs)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline struct omap_opp *opp_add(struct omap_opp *oppl,
 			 const struct omap_opp_def *opp_def)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline int opp_enable(struct omap_opp *opp)
@@ -292,7 +292,7 @@ static inline int opp_disable(struct omap_opp *opp)
 static inline struct omap_opp * __deprecated
 opp_find_by_opp_id(struct omap_opp *opps, u8 opp_id)
 {
-	return NULL;
+	return ERR_PTR(-EINVAL);
 }
 
 static inline u8 __deprecated opp_get_opp_id(struct omap_opp *opp)
-- 
1.6.3.3