From 4f865c3b15a71dbeae999a10256742751410394e Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Wed, 14 Feb 2024 16:16:53 +0100 Subject: [PATCH] libvhost-user: No need to check for NULL when unmapping We never add a memory region if mmap() failed. Therefore, no need to check for NULL. Reviewed-by: Raphael Norwitz Acked-by: Stefano Garzarella Signed-off-by: David Hildenbrand Message-Id: <20240214151701.29906-7-david@redhat.com> Tested-by: Mario Casquero Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- subprojects/libvhost-user/libvhost-user.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c index f43b5096d0..225283f764 100644 --- a/subprojects/libvhost-user/libvhost-user.c +++ b/subprojects/libvhost-user/libvhost-user.c @@ -247,11 +247,8 @@ vu_remove_all_mem_regs(VuDev *dev) for (i = 0; i < dev->nregions; i++) { VuDevRegion *r = &dev->regions[i]; - void *ma = (void *)(uintptr_t)r->mmap_addr; - if (ma) { - munmap(ma, r->size + r->mmap_offset); - } + munmap((void *)(uintptr_t)r->mmap_addr, r->size + r->mmap_offset); } dev->nregions = 0; } @@ -888,11 +885,8 @@ vu_rem_mem_reg(VuDev *dev, VhostUserMsg *vmsg) { for (i = 0; i < dev->nregions; i++) { if (reg_equal(&dev->regions[i], msg_region)) { VuDevRegion *r = &dev->regions[i]; - void *ma = (void *) (uintptr_t) r->mmap_addr; - if (ma) { - munmap(ma, r->size + r->mmap_offset); - } + munmap((void *)(uintptr_t)r->mmap_addr, r->size + r->mmap_offset); /* * Shift all affected entries by 1 to close the hole at index i and