From 3319a8ba82b9f9c18568b18bc1febb34ae18b2c2 Mon Sep 17 00:00:00 2001 From: Tyrel Datwyler Date: Wed, 9 Jan 2019 18:59:09 -0800 Subject: [PATCH] scsi: ibmvscsi: Use GFP_KERNEL with dma_alloc_coherent() in initialize_event_pool() During driver probe we allocate a dma region for our event pool. Currently, zero is passed for the gfp_flags parameter. Driver probe callbacks are run in process context and we hold no locks so we can sleep here if necessary. Fix by passing GFP_KERNEL explicitly to dma_alloc_coherent(). Link: https://lore.kernel.org/r/1547089149-20577-1-git-send-email-tyreld@linux.vnet.ibm.com Reviewed-by: Brian King Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvscsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 1086059..1b2171b 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -454,7 +454,7 @@ static int initialize_event_pool(struct event_pool *pool, pool->iu_storage = dma_alloc_coherent(hostdata->dev, pool->size * sizeof(*pool->iu_storage), - &pool->iu_token, 0); + &pool->iu_token, GFP_KERNEL); if (!pool->iu_storage) { kfree(pool->events); return -ENOMEM; -- 2.7.4