[PATCH] net: wwan: iosm: fix a resource leak in probe

From: Ruting Zhang
Date: Tue Apr 18 2023 - 03:43:31 EST


drivers/net/wwan/iosm/iosm_ipc_pcie.c:298 ipc_pcie_probe() Smatch warn:
missing unwind goto?
There is a resource leak in this place.

Fix it by changing "return ret" into "goto resources_req_fail".
Fixes: 035e3befc191 ("net: wwan: iosm: fix driver not working with INTEL_IOMMU disabled")

Signed-off-by: Ruting Zhang <u202112078@xxxxxxxxxxx>
Reviewed-by: Dongliang Mu <dzm91@xxxxxxxxxxx>
---
The issue is found by static analysis and remains untested.
---
drivers/net/wwan/iosm/iosm_ipc_pcie.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wwan/iosm/iosm_ipc_pcie.c b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
index 5bf5a93937c9..33339e8af1dc 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_pcie.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
@@ -295,7 +295,7 @@ static int ipc_pcie_probe(struct pci_dev *pci,
ret = dma_set_mask(ipc_pcie->dev, DMA_BIT_MASK(64));
if (ret) {
dev_err(ipc_pcie->dev, "Could not set PCI DMA mask: %d", ret);
- return ret;
+ goto resources_req_fail;
}

ipc_pcie_config_aspm(ipc_pcie);
--
2.34.1