| commit | ef2b29a7ba6ca8a9d2c82ab591c0622227ff84cb | |
| author | Imre Vadász <imre@vdsz.com> | |
| Fri, 10 Jun 2016 00:04:31 +0000 (10 02:04 +0200) | ||
| committer | Imre Vadász <imre@vdsz.com> | |
| Fri, 10 Jun 2016 00:31:32 +0000 (10 02:31 +0200) | ||
| tree | 9a1bb9de760a85ef47794d67682c04b088af7d4e | treesnapshot (tar.gz zip) |
| parent | 5f59596d186cd7f9ff48a747e8dd29cca1286e72 | commitdiff |
if_iwm - Fix iwm_dma_contig_free(). dma->map is always NULL here.
* When bus_dmamem_alloc is used, the bus_dmamap_t is set to NULL, so we
were never actually freeing any dma memory allocations done via
iwm_dma_contig_alloc(). So we should check dma->vaddr instead of
dma->map here.
* This reduces dma memory leakage (as displayed by
"sysctl vm.dma_free_pages") to 11 pages for each if_iwm module
load/unload cycle.
* When bus_dmamem_alloc is used, the bus_dmamap_t is set to NULL, so we
were never actually freeing any dma memory allocations done via
iwm_dma_contig_alloc(). So we should check dma->vaddr instead of
dma->map here.
* This reduces dma memory leakage (as displayed by
"sysctl vm.dma_free_pages") to 11 pages for each if_iwm module
load/unload cycle.
| sys/dev/netif/iwm/if_iwm.c | diffblobblamehistory |