From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 25 Aug 2016 13:23:06 +0200
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus reuse the corresponding function "kmalloc_array".
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/x86/xen/grant-table.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c
index de4144c..809b6c8 100644
--- a/arch/x86/xen/grant-table.c
+++ b/arch/x86/xen/grant-table.c
@@ -89,7 +89,7 @@ void arch_gnttab_unmap(void *shared, unsigned long nr_gframes)
static int arch_gnttab_valloc(struct gnttab_vm_area *area, unsigned nr_frames)
{
- area->ptes = kmalloc(sizeof(pte_t *) * nr_frames, GFP_KERNEL);
+ area->ptes = kmalloc_array(nr_frames, sizeof(*area->ptes), GFP_KERNEL);
if (area->ptes == NULL)
return -ENOMEM;
--
2.9.3
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