From: Robert Richter rrichter@marvell.com
commit 4d59588c09f2a2daedad2a544d4d1b602ab3a8af upstream.
All created csrow objects must be removed in the error path of edac_create_csrow_objects(). The objects have been added as devices.
They need to be removed by doing a device_del() *and* put_device() call to also free their memory. The missing put_device() leaves a memory leak. Use device_unregister() instead of device_del() which properly unregisters the device doing both.
Fixes: 7adc05d2dc3a ("EDAC/sysfs: Drop device references properly") Signed-off-by: Robert Richter rrichter@marvell.com Signed-off-by: Borislav Petkov bp@suse.de Tested-by: John Garry john.garry@huawei.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200212120340.4764-4-rrichter@marvell.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/edac/edac_mc_sysfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -447,8 +447,7 @@ error: csrow = mci->csrows[i]; if (!nr_pages_per_csrow(csrow)) continue; - - device_del(&mci->csrows[i]->dev); + device_unregister(&mci->csrows[i]->dev); }
return err;