diff options
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.c | 23 |
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); |