From: Christophe JAILLET Date: Sun, 31 Jul 2022 16:09:14 +0000 (+0200) Subject: s390/vfio-ap: fix an error handling path in vfio_ap_mdev_probe_queue() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=08866d34c7099e981918d34aab5d6a437436628f;p=linux.git s390/vfio-ap: fix an error handling path in vfio_ap_mdev_probe_queue() The commit in Fixes: has switch the order of a sysfs_create_group() and a kzalloc(). It correctly removed the now useless kfree() but forgot to add a sysfs_remove_group() in case of (unlikely) memory allocation failure. Add it now. Fixes: 260f3ea14138 ("s390/vfio-ap: move probe and remove callbacks to vfio_ap_ops.c") Signed-off-by: Christophe JAILLET Signed-off-by: Alexander Gordeev Link: https://lore.kernel.org/r/d0c0a35eec4fa87cb7f3910d8ac4dc0f7dc9008a.1659283738.git.christophe.jaillet@wanadoo.fr Signed-off-by: Heiko Carstens --- diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index 9c01957e56b3f..b0b25bc95985b 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -1857,8 +1857,10 @@ int vfio_ap_mdev_probe_queue(struct ap_device *apdev) return ret; q = kzalloc(sizeof(*q), GFP_KERNEL); - if (!q) - return -ENOMEM; + if (!q) { + ret = -ENOMEM; + goto err_remove_group; + } q->apqn = to_ap_queue(&apdev->device)->qid; q->saved_isc = VFIO_AP_ISC_INVALID; @@ -1876,6 +1878,10 @@ int vfio_ap_mdev_probe_queue(struct ap_device *apdev) release_update_locks_for_mdev(matrix_mdev); return 0; + +err_remove_group: + sysfs_remove_group(&apdev->device.kobj, &vfio_queue_attr_group); + return ret; } void vfio_ap_mdev_remove_queue(struct ap_device *apdev)