diff options
| author |   Anup Patel <anup.patel@broadcom.com> | 2017-10-03 10:52:57 +0530 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2017-10-23 11:35:47 +0530 |
| commit | 5d74aa7f641a8bf778b87941ae6a955121f64f7d (patch) | |
| tree | a36b677744348c78bcb9e0808cc3af89eefe069a /drivers/dma/bcm-sba-raid.c | |
| parent | Linux 4.14-rc1 (diff) | |
| download | linux-dev-5d74aa7f641a8bf778b87941ae6a955121f64f7d.tar.xz linux-dev-5d74aa7f641a8bf778b87941ae6a955121f64f7d.zip | |
dmaengine: bcm-sba-raid: serialize dma_cookie_complete() using reqs_lock
As-per documentation in driver/dma/dmaengine.h, the
dma_cookie_complete() API should be called with lock
held.
This patch ensures that Broadcom SBA RAID driver calls
the dma_cookie_complete() API with reqs_lock held.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/bcm-sba-raid.c')
| -rw-r--r-- | drivers/dma/bcm-sba-raid.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c index 6c2c44724637..15c558508345 100644 --- a/drivers/dma/bcm-sba-raid.c +++ b/drivers/dma/bcm-sba-raid.c @@ -442,7 +442,9 @@ static void sba_process_received_request(struct sba_device *sba, WARN_ON(tx->cookie < 0); if (tx->cookie > 0) { + spin_lock_irqsave(&sba->reqs_lock, flags); dma_cookie_complete(tx); + spin_unlock_irqrestore(&sba->reqs_lock, flags); dmaengine_desc_get_callback_invoke(tx, NULL); dma_descriptor_unmap(tx); tx->callback = NULL; |