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hfi1/user_exp_rcv/setup: add access_ok check

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This commit is contained in:
Dominique Martinet
2017-09-21 17:52:52 +09:00
committed by Balazs Gerofi
parent 04434320fc
commit ce4eb0d409
1 changed files with 2 additions and 2 deletions
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4
kernel/user_exp_rcv.c
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@ -105,8 +105,8 @@ int hfi1_user_exp_rcv_setup(struct hfi1_filedata *fd, struct hfi1_tid_info *tinf
return -ENOMEM;
/* Verify that access is OK for the user buffer */
// TODO: iterate over vm memory ranges for write access
// return -EFAULT;
if (access_ok(vm, VERIFY_WRITE, tinfo->vaddr, tinfo->length))
return -EFAULT;
vaddr_end = tinfo->vaddr + tinfo->length;
dkprintf("setup start: 0x%llx, length: %zu\n", tinfo->vaddr,