From: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Date: Sat, 3 Jan 2026 07:46:47 +0000 (+0800)
Subject: media: cx25821: Fix a resource leak in cx25821_dev_setup()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68cd8ac994cac38a305200f638b30e13c690753b;p=thirdparty%2Fkernel%2Flinux.git

media: cx25821: Fix a resource leak in cx25821_dev_setup()

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

Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
---

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;
 	}