From 2592632d39620e414c0e5bb7952f202839d09ac9 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Thu, 8 Dec 2011 15:32:09 +1100 Subject: [PATCH] mm/vmalloc.c: eliminate extra loop in pcpu_get_vm_areas error path If either of the vas or vms arrays are not properly kzalloced, then the code jumps to the err_free label. The err_free label runs a loop to check and free each of the array members of the vas and vms arrays which is not required for this situation as none of the array members have been allocated till this point. Eliminate the extra loop we have to go through by introducing a new label err_free2 and then jumping to it. Signed-off-by: Kautuk Consul Acked-by: David Rientjes Signed-off-by: Andrew Morton --- mm/vmalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 51c3554e1c35..ccc8b1b08293 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2378,7 +2378,7 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, vms = kzalloc(sizeof(vms[0]) * nr_vms, GFP_KERNEL); vas = kzalloc(sizeof(vas[0]) * nr_vms, GFP_KERNEL); if (!vas || !vms) - goto err_free; + goto err_free2; for (area = 0; area < nr_vms; area++) { vas[area] = kzalloc(sizeof(struct vmap_area), GFP_KERNEL); @@ -2481,6 +2481,7 @@ err_free: if (vms) kfree(vms[area]); } +err_free2: kfree(vas); kfree(vms); return NULL; -- 2.39.5