From: Xiongfeng Wang wangxiongfeng2@huawei.com
[ Upstream commit 725a521a18734f65de05b8d353b5bd0d3ca4c37a ]
As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL.
If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
Fixes: d8ade3526b2a ("drm/radeon: handle non-VGA class pci devices with ATRM") Fixes: c61e2775873f ("drm/radeon: split ATRM support out from the ATPX handler (v3)") Signed-off-by: Xiongfeng Wang wangxiongfeng2@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/radeon_bios.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 21b6732425c5..82ea78fce748 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -215,6 +215,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
if (!found) return false; + pci_dev_put(pdev);
rdev->bios = kmalloc(size, GFP_KERNEL); if (!rdev->bios) {