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Free the static DMA buffer holding the command ring during detach as well

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as if attach fails.
This commit is contained in:
jhb 2014-07-01 18:24:54 +00:00
parent dc6db53254
commit b8f0dfb4b7
1 changed files with 13 additions and 0 deletions
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13
sys/dev/tws/tws.c
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@ -310,6 +310,12 @@ tws_attach(device_t dev)
attach_fail_4:
tws_teardown_intr(sc);
destroy_dev(sc->tws_cdev);
if (sc->dma_mem_phys)
bus_dmamap_unload(sc->cmd_tag, sc->cmd_map);
if (sc->dma_mem)
bus_dmamem_free(sc->cmd_tag, sc->dma_mem, sc->cmd_map);
if (sc->cmd_tag)
bus_dma_tag_destroy(sc->cmd_tag);
attach_fail_3:
for(i=0;i<sc->irqs;i++) {
if ( sc->irq_res[i] ){
@ -383,6 +389,13 @@ tws_detach(device_t dev)
tws_cam_detach(sc);
if (sc->dma_mem_phys)
bus_dmamap_unload(sc->cmd_tag, sc->cmd_map);
if (sc->dma_mem)
bus_dmamem_free(sc->cmd_tag, sc->dma_mem, sc->cmd_map);
if (sc->cmd_tag)
bus_dma_tag_destroy(sc->cmd_tag);
/* Release memory resource */
if ( sc->mfa_res ){
if (bus_release_resource(sc->tws_dev,