On 2020/9/9 下午11:41, Li Qiang wrote:
Free the 'page_list' when the 'npages' is zero.Signed-off-by: Li Qiang <liq...@163.com> --- drivers/vhost/vdpa.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 3fab94f88894..6a9fcaf1831d 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -609,8 +609,10 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v, gup_flags |= FOLL_WRITE;npages = PAGE_ALIGN(msg->size + (iova & ~PAGE_MASK)) >> PAGE_SHIFT;- if (!npages) - return -EINVAL; + if (!npages) { + ret = -EINVAL; + goto free_page; + }mmap_read_lock(dev->mm); @@ -666,6 +668,8 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v,atomic64_sub(npages, &dev->mm->pinned_vm); } mmap_read_unlock(dev->mm); + +free_page: free_page((unsigned long)page_list); return ret; }
Cc: sta...@vger.kernel.org Acked-by: Jason Wang <jasow...@redhat.com> _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
