When we use this pointer, we cast away the const modifier and modify the
data. I think it was an accident to declare it as const.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/include/xen/privcmd.h b/include/xen/privcmd.h
index a853168..58ed953 100644
--- a/include/xen/privcmd.h
+++ b/include/xen/privcmd.h
@@ -69,7 +69,7 @@ struct privcmd_mmapbatch_v2 {
unsigned int num; /* number of pages to populate */
domid_t dom; /* target domain */
__u64 addr; /* virtual address */
- const xen_pfn_t __user *arr; /* array of mfns */
+ xen_pfn_t __user *arr; /* array of mfns */
int __user *err; /* array of error codes */
};
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 0ce006a..fceb83e 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -389,7 +389,7 @@ static long privcmd_ioctl_mmap_batch(void __user *udata, int version)
if (state.global_error && (version == 1)) {
/* Write back errors in second pass. */
- state.user_mfn = (xen_pfn_t *)m.arr;
+ state.user_mfn = m.arr;
state.err = err_array;
ret = traverse_pages(m.num, sizeof(xen_pfn_t),
&pagelist, mmap_return_errors_v1, &state);
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