ASoC: Intel: Skylake: Unmap the address last
authorVinod Koul <vinod.koul@intel.com>
Tue, 15 Mar 2016 11:09:26 +0000 (16:39 +0530)
committerMark Brown <broonie@kernel.org>
Wed, 16 Mar 2016 10:08:43 +0000 (10:08 +0000)
In Skylake destructor we unmap the hardware address and then free
links and streams. The stream free accesses hardware to write to
registers and predictably causes oops.

So change the order and unmap last in destructor.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/intel/skylake/skl.c

index 292d51d..6e916c3 100644 (file)
@@ -316,12 +316,13 @@ static int skl_free(struct hdac_ext_bus *ebus)
 
        if (bus->irq >= 0)
                free_irq(bus->irq, (void *)bus);
-       if (bus->remap_addr)
-               iounmap(bus->remap_addr);
-
        snd_hdac_bus_free_stream_pages(bus);
        snd_hdac_stream_free_all(ebus);
        snd_hdac_link_free_all(ebus);
+
+       if (bus->remap_addr)
+               iounmap(bus->remap_addr);
+
        pci_release_regions(skl->pci);
        pci_disable_device(skl->pci);