[PATCH 4.19 202/264] NTB: hw: amd: fix an issue about leak system resources

Greg Kroah-Hartman
2020-10-27T17:46:32Z

From: Kaige Li <likaige@loongson.cn>

[ Upstream commit 44a0a3c17919db1498cebb02ecf3cf4abc1ade7b ]

The related system resources were not released when pci_set_dma_mask(),
pci_set_consistent_dma_mask(), or pci_iomap() return error in the
amd_ntb_init_pci() function. Add pci_release_regions() to fix it.

Fixes: a1b3695820aa ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge")
Signed-off-by: Kaige Li <likaige@loongson.cn>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ntb/hw/amd/ntb_hw_amd.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index efb214fc545a2..0b1fbb5dba9b6 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -1036,6 +1036,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,

err_dma_mask:
pci_clear_master(pdev);
+ pci_release_regions(pdev);
err_pci_regions:
pci_disable_device(pdev);
err_pci_enable:
--
2.25.1