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path: root/drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c
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Diffstat (limited to 'drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c')
-rw-r--r--drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c b/drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c
index d96aaa4bc75d..2e07dab8bf51 100644
--- a/drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c
+++ b/drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr_vbuf.c
@@ -254,14 +254,15 @@ void rmgr_pop_handle(struct ia_css_rmgr_vbuf_pool *pool,
void ia_css_rmgr_acq_vbuf(struct ia_css_rmgr_vbuf_pool *pool,
struct ia_css_rmgr_vbuf_handle **handle)
{
- struct ia_css_rmgr_vbuf_handle h;
-
if ((!pool) || (!handle) || (!*handle)) {
IA_CSS_LOG("Invalid inputs");
return;
}
if (pool->copy_on_write) {
+ struct ia_css_rmgr_vbuf_handle *new_handle;
+ struct ia_css_rmgr_vbuf_handle h = { 0 };
+
/* only one reference, reuse (no new retain) */
if ((*handle)->count == 1)
return;
@@ -272,23 +273,29 @@ void ia_css_rmgr_acq_vbuf(struct ia_css_rmgr_vbuf_pool *pool,
h.size = (*handle)->size;
/* release ref to current buffer */
ia_css_rmgr_refcount_release_vbuf(handle);
- *handle = &h;
+ new_handle = &h;
+ } else {
+ new_handle = *handle;
}
/* get new buffer for needed size */
- if ((*handle)->vptr == 0x0) {
+ if (new_handle->vptr == 0x0) {
if (pool->recycle) {
/* try and pop from pool */
- rmgr_pop_handle(pool, handle);
+ rmgr_pop_handle(pool, &new_handle);
}
- if ((*handle)->vptr == 0x0) {
+ if (new_handle->vptr == 0x0) {
/* we need to allocate */
- (*handle)->vptr = hmm_alloc((*handle)->size,
- HMM_BO_PRIVATE, 0, NULL, 0);
+ new_handle->vptr = hmm_alloc(new_handle->size);
} else {
/* we popped a buffer */
+ *handle = new_handle;
return;
}
}
+ /* Note that new_handle will change to an internally maintained one */
+ ia_css_rmgr_refcount_retain_vbuf(&new_handle);
+ *handle = new_handle;
+ return;
}
/* Note that handle will change to an internally maintained one */
ia_css_rmgr_refcount_retain_vbuf(handle);