Merge pull request torvalds#280 from catalinii/latest

Improve help message for failure to allocate DMA memory
CounterPillow · Apr 3, 2022 · 4420983 · 4420983
2 parents 85a2528 + 99efd97
commit 4420983
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/media/pci/tbsci/tbsci.c b/drivers/media/pci/tbsci/tbsci.c
@@ -933,13 +933,13 @@ static int tbs_adapters_init(struct tbs_pcie_dev *dev)
 		tbsca->w_dmavirt = pci_alloc_consistent(dev->pdev, DMASIZE, &tbsca->w_dmaphy);
 		if (!tbsca->w_dmavirt)
 		{
-			printk(" allocate write memory failed\n");
+			printk("allocate write DMA  memory failed, set coherent_pool=4M or higher\n");
 			goto fail;
 		}
 		tbsca->r_dmavirt = pci_alloc_consistent(dev->pdev, DMASIZE, &tbsca->r_dmaphy);
 		if (!tbsca->r_dmavirt)
 		{
-			printk(" allocate read memory failed\n");
+			printk("allocate read DMA memory failed, set coherent_pool=4M or higher\n");
 			goto fail;
 		}
 		tbsca->channel_index=i;