diff options
| author |   Lars-Peter Clausen <lars@metafoo.de> | 2015-10-20 11:46:31 +0200 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2015-11-16 08:28:52 +0530 |
| commit | bc0e7345168c0f7483d2d1da86285d89136417cd (patch) | |
| tree | 9045e7f4f133da72296fdf13c9270db34d64906a /include/linux/dmaengine.h | |
| parent | dmaengine: axi_dmac: Add synchronization support (diff) | |
| download | wireguard-linux-bc0e7345168c0f7483d2d1da86285d89136417cd.tar.xz wireguard-linux-bc0e7345168c0f7483d2d1da86285d89136417cd.zip | |
ALSA: pcm_dmaengine: Properly synchronize DMA on shutdown
Use the new dmaengine_synchronize() function to make sure that all complete
callbacks have finished running before the runtime data, which is accessed
in the completed callback, is freed.
This fixes a long standing use-after-free race condition that has been
observed on some systems.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'include/linux/dmaengine.h')
0 files changed, 0 insertions, 0 deletions