From: Maurizio Lombardi Date: Fri, 22 Jan 2016 12:41:42 +0000 (+0100) Subject: megaraid: fix null pointer check in megasas_detach_one(). X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=546e559c79b1a8d27c23262907a00fc209e392a0;p=linux-beck.git megaraid: fix null pointer check in megasas_detach_one(). The pd_seq_sync pointer can't be NULL, we have to check its entries instead. Signed-off-by: Maurizio Lombardi Acked-by: Sumit Saxena Reviewed-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 54922e5f4faa..a83132737191 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -6294,11 +6294,11 @@ static void megasas_detach_one(struct pci_dev *pdev) if (fusion->ld_drv_map[i]) free_pages((ulong)fusion->ld_drv_map[i], fusion->drv_map_pages); - if (fusion->pd_seq_sync) - dma_free_coherent(&instance->pdev->dev, - pd_seq_map_sz, - fusion->pd_seq_sync[i], - fusion->pd_seq_phys[i]); + if (fusion->pd_seq_sync[i]) + dma_free_coherent(&instance->pdev->dev, + pd_seq_map_sz, + fusion->pd_seq_sync[i], + fusion->pd_seq_phys[i]); } free_pages((ulong)instance->ctrl_context, instance->ctrl_context_pages);