[PATCH 6.19 181/844] media: cx25821: Fix a resource leak in cx25821_dev_setup()

[Sasha Levin]

From: Haoxiang Li <lihaoxiang@xxxxxxxxxxxxxxxx>

[ Upstream commit 68cd8ac994cac38a305200f638b30e13c690753b ]

Add release_mem_region() if ioremap() fails to release the memory
region obtained by cx25821_get_resources().

Signed-off-by: Haoxiang Li <lihaoxiang@xxxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil+cisco@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/pci/cx25821/cx25821-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
index 6627fa9166d30..a7336be444748 100644
--- a/drivers/media/pci/cx25821/cx25821-core.c
+++ b/drivers/media/pci/cx25821/cx25821-core.c
@@ -908,6 +908,7 @@ static int cx25821_dev_setup(struct cx25821_dev *dev)
 
 	if (!dev->lmmio) {
 		CX25821_ERR("ioremap failed, maybe increasing __VMALLOC_RESERVE in page.h\n");
+		release_mem_region(dev->base_io_addr, pci_resource_len(dev->pci, 0));
 		cx25821_iounmap(dev);
 		return -ENOMEM;
 	}
-- 
2.51.0