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path: root/drivers/media/video/pvrusb2/pvrusb2-ioread.c
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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-ioread.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-ioread.c34
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
index 49da062e327..f7a2e225a00 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
@@ -54,7 +54,7 @@ static int pvr2_ioread_init(struct pvr2_ioread *cp)
{
unsigned int idx;
- cp->stream = 0;
+ cp->stream = NULL;
mutex_init(&cp->mutex);
for (idx = 0; idx < BUFFER_COUNT; idx++) {
@@ -77,7 +77,7 @@ static void pvr2_ioread_done(struct pvr2_ioread *cp)
{
unsigned int idx;
- pvr2_ioread_setup(cp,0);
+ pvr2_ioread_setup(cp,NULL);
for (idx = 0; idx < BUFFER_COUNT; idx++) {
if (!(cp->buffer_storage[idx])) continue;
kfree(cp->buffer_storage[idx]);
@@ -88,12 +88,12 @@ struct pvr2_ioread *pvr2_ioread_create(void)
{
struct pvr2_ioread *cp;
cp = kmalloc(sizeof(*cp),GFP_KERNEL);
- if (!cp) return 0;
+ if (!cp) return NULL;
pvr2_trace(PVR2_TRACE_STRUCT,"pvr2_ioread_create id=%p",cp);
memset(cp,0,sizeof(*cp));
if (pvr2_ioread_init(cp) < 0) {
kfree(cp);
- return 0;
+ return NULL;
}
return cp;
}
@@ -105,7 +105,7 @@ void pvr2_ioread_destroy(struct pvr2_ioread *cp)
pvr2_trace(PVR2_TRACE_STRUCT,"pvr2_ioread_destroy id=%p",cp);
if (cp->sync_key_ptr) {
kfree(cp->sync_key_ptr);
- cp->sync_key_ptr = 0;
+ cp->sync_key_ptr = NULL;
}
kfree(cp);
}
@@ -124,7 +124,7 @@ void pvr2_ioread_set_sync_key(struct pvr2_ioread *cp,
if (sync_key_len != cp->sync_key_len) {
if (cp->sync_key_ptr) {
kfree(cp->sync_key_ptr);
- cp->sync_key_ptr = 0;
+ cp->sync_key_ptr = NULL;
}
cp->sync_key_len = 0;
if (sync_key_len) {
@@ -144,8 +144,8 @@ static void pvr2_ioread_stop(struct pvr2_ioread *cp)
pvr2_trace(PVR2_TRACE_START_STOP,
"/*---TRACE_READ---*/ pvr2_ioread_stop id=%p",cp);
pvr2_stream_kill(cp->stream);
- cp->c_buf = 0;
- cp->c_data_ptr = 0;
+ cp->c_buf = NULL;
+ cp->c_data_ptr = NULL;
cp->c_data_len = 0;
cp->c_data_offs = 0;
cp->enabled = 0;
@@ -179,8 +179,8 @@ static int pvr2_ioread_start(struct pvr2_ioread *cp)
}
}
cp->enabled = !0;
- cp->c_buf = 0;
- cp->c_data_ptr = 0;
+ cp->c_buf = NULL;
+ cp->c_data_ptr = NULL;
cp->c_data_len = 0;
cp->c_data_offs = 0;
cp->stream_running = 0;
@@ -214,7 +214,7 @@ int pvr2_ioread_setup(struct pvr2_ioread *cp,struct pvr2_stream *sp)
pvr2_ioread_stop(cp);
pvr2_stream_kill(cp->stream);
pvr2_stream_set_buffer_count(cp->stream,0);
- cp->stream = 0;
+ cp->stream = NULL;
}
if (sp) {
pvr2_trace(PVR2_TRACE_START_STOP,
@@ -251,12 +251,8 @@ int pvr2_ioread_set_enabled(struct pvr2_ioread *cp,int fl)
return ret;
}
-int pvr2_ioread_get_enabled(struct pvr2_ioread *cp)
-{
- return cp->enabled != 0;
-}
-int pvr2_ioread_get_buffer(struct pvr2_ioread *cp)
+static int pvr2_ioread_get_buffer(struct pvr2_ioread *cp)
{
int stat;
@@ -274,8 +270,8 @@ int pvr2_ioread_get_buffer(struct pvr2_ioread *cp)
pvr2_ioread_stop(cp);
return 0;
}
- cp->c_buf = 0;
- cp->c_data_ptr = 0;
+ cp->c_buf = NULL;
+ cp->c_data_ptr = NULL;
cp->c_data_len = 0;
cp->c_data_offs = 0;
}
@@ -307,7 +303,7 @@ int pvr2_ioread_get_buffer(struct pvr2_ioread *cp)
return !0;
}
-void pvr2_ioread_filter(struct pvr2_ioread *cp)
+static void pvr2_ioread_filter(struct pvr2_ioread *cp)
{
unsigned int idx;
if (!cp->enabled) return;