[PATCH] AsoC: intel: sst: fix PCI device reference leak on probe failure

[Haoxiang Li]

intel_sst_probe() takes a reference to the PCI device with pci_dev_get().
If sst_platform_get_resources() fails afterwards, the probe error path
cleans up the driver context but does not drop the PCI device reference.

Add a pci_dev_put() error path for failures after pci_dev_get().

Fixes: f533a035e4da ("ASoC: Intel: mrfld - create separate module for pci part")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
---
 sound/soc/intel/atom/sst/sst_pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/atom/sst/sst_pci.c b/sound/soc/intel/atom/sst/sst_pci.c
index 22ae2d22f121..44bb11c69490 100644
--- a/sound/soc/intel/atom/sst/sst_pci.c
+++ b/sound/soc/intel/atom/sst/sst_pci.c
@@ -130,13 +130,15 @@ static int intel_sst_probe(struct pci_dev *pci,
 	sst_drv_ctx->pci = pci_dev_get(pci);
 	ret = sst_platform_get_resources(sst_drv_ctx);
 	if (ret < 0)
-		goto do_free_drv_ctx;
+		goto do_put_pci;
 
 	pci_set_drvdata(pci, sst_drv_ctx);
 	sst_configure_runtime_pm(sst_drv_ctx);
 
 	return ret;
 
+do_put_pci:
+	pci_dev_put(sst_drv_ctx->pci);
 do_free_drv_ctx:
 	sst_context_cleanup(sst_drv_ctx);
 	dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret);
-- 
2.25.1