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Removed check for grants that wrap.

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This commit is contained in:
Philip Homburg 2007-08-07 12:19:45 +00:00
parent 2519a7cb61
commit 4f787035ea
1 changed files with 0 additions and 9 deletions
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9
kernel/system/do_safecopy.c
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@ -141,15 +141,6 @@ endpoint_t *e_granter; /* new granter (magic grants) */
return EPERM; return EPERM;
} }
/* Don't fiddle around with grants that wrap, arithmetic
* below may be confused.
*/
if(MEM_TOP - g.cp_u.cp_magic.cp_len <
g.cp_u.cp_magic.cp_start - 1) {
kprintf("magic grant verify failed: len too long\n");
return EPERM;
}
/* Verify actual grantee. */ /* Verify actual grantee. */
if(g.cp_u.cp_magic.cp_who_to != grantee && grantee != ANY) { if(g.cp_u.cp_magic.cp_who_to != grantee && grantee != ANY) {
kprintf("magic grant verify failed: bad grantee\n"); kprintf("magic grant verify failed: bad grantee\n");