msm: ocmem: Change the return type of the notifier api.
The ocmem notifier API currently works with a void* pointer
for registration and de-registration. Change it to return
a pointer to struct ocmem_notifier which is useful for debug
purposes.
Change-Id: I93af1213624e5da6993514078451f0474af2c89e
Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
diff --git a/arch/arm/mach-msm/include/mach/ocmem.h b/arch/arm/mach-msm/include/mach/ocmem.h
index b0475ed..927624d 100644
--- a/arch/arm/mach-msm/include/mach/ocmem.h
+++ b/arch/arm/mach-msm/include/mach/ocmem.h
@@ -24,6 +24,8 @@
#define OCMEM_MAX_CHUNKS 32
#define MIN_CHUNK_SIZE (SZ_1K/8)
+struct ocmem_notifier;
+
struct ocmem_buf {
unsigned long addr;
unsigned long len;
@@ -80,9 +82,11 @@
/* APIS */
/* Notification APIs */
-void *ocmem_notifier_register(int client_id, struct notifier_block *nb);
+struct ocmem_notifier *ocmem_notifier_register(int client_id,
+ struct notifier_block *nb);
-int ocmem_notifier_unregister(void *notif_hndl, struct notifier_block *nb);
+int ocmem_notifier_unregister(struct ocmem_notifier *notif_hndl,
+ struct notifier_block *nb);
/* Obtain the maximum quota for the client */
unsigned long get_max_quota(int client_id);
diff --git a/arch/arm/mach-msm/ocmem_notifier.c b/arch/arm/mach-msm/ocmem_notifier.c
index 58ad3d9..4754f44 100644
--- a/arch/arm/mach-msm/ocmem_notifier.c
+++ b/arch/arm/mach-msm/ocmem_notifier.c
@@ -75,7 +75,8 @@
return ret;
}
-void *ocmem_notifier_register(int client_id, struct notifier_block *nb)
+struct ocmem_notifier *ocmem_notifier_register(int client_id,
+ struct notifier_block *nb)
{
int ret = 0;
@@ -115,13 +116,12 @@
}
EXPORT_SYMBOL(ocmem_notifier_register);
-int ocmem_notifier_unregister(void *hndl, struct notifier_block *nb)
+int ocmem_notifier_unregister(struct ocmem_notifier *nc_hndl,
+ struct notifier_block *nb)
{
int ret = 0;
- struct ocmem_notifier *nc_hndl = (struct ocmem_notifier *) hndl;
-
if (!nc_hndl) {
pr_err("ocmem: Invalid notification handle\n");
return -EINVAL;