[v2,1/5] media: Use all bits of an enumeration
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Message ID 1453906078-29087-2-git-send-email-sakari.ailus@iki.fi
State New
Headers show

Commit Message

Sakari Ailus Jan. 27, 2016, 2:47 p.m. UTC
The allocation takes place in longs. Assign the size of the enum
accordingly.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/media-entity.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch
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diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index e89d85a..2c579f4 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -73,8 +73,9 @@  static inline const char *intf_type(struct media_interface *intf)
 __must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
 					  int idx_max)
 {
-	ent_enum->bmap = kcalloc(DIV_ROUND_UP(idx_max, BITS_PER_LONG),
-				 sizeof(long), GFP_KERNEL);
+	idx_max = ALIGN(idx_max, BITS_PER_LONG);
+	ent_enum->bmap = kcalloc(idx_max / BITS_PER_LONG, sizeof(long),
+				 GFP_KERNEL);
 	if (!ent_enum->bmap)
 		return -ENOMEM;