[PATCH 10/11] KVM: PPC: e500: Use kcalloc() in e500_mmu_host_init()

From: SF Markus Elfring
Date: Fri Jan 20 2017 - 13:29:44 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 20 Jan 2017 16:30:18 +0100

* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kcalloc".

This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kvm/e500_mmu_host.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index b0333cc737dd..a1af2f445988 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -797,9 +797,8 @@ int e500_mmu_host_init(struct kvmppc_vcpu_e500 *vcpu_e500)
host_tlb_params[0].sets =
host_tlb_params[0].entries / host_tlb_params[0].ways;
host_tlb_params[1].sets = 1;
-
- vcpu_e500->h2g_tlb1_rmap = kzalloc(sizeof(unsigned int) *
- host_tlb_params[1].entries,
+ vcpu_e500->h2g_tlb1_rmap = kcalloc(host_tlb_params[1].entries,
+ sizeof(*vcpu_e500->h2g_tlb1_rmap),
GFP_KERNEL);
if (!vcpu_e500->h2g_tlb1_rmap)
return -EINVAL;
--
2.11.0