If edac_mc_alloc() fails, also unmap the window. Add a goto to do so.

Found by code review and compiled on ubuntu 20.04

Fixes: dd8ef1db87a4 ("edac: i3200 memory controller driver") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li lihaoxiang@isrc.iscas.ac.cn --- drivers/edac/i3200_edac.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/i3200_edac.c b/drivers/edac/i3200_edac.c index afccdebf5ac1..fd5dc33c406f 100644 --- a/drivers/edac/i3200_edac.c +++ b/drivers/edac/i3200_edac.c @@ -360,8 +360,10 @@ static int i3200_probe1(struct pci_dev *pdev, int dev_idx) layers[1].is_virt_csrow = false; mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(struct i3200_priv)); - if (!mci) - return -ENOMEM; + if (!mci) { + rc = -ENOMEM; + goto fail; + }

edac_dbg(3, "MC: init mci\n");