Author: cognet
Date: Fri Nov 16 00:14:02 2012
New Revision: 243109
URL: http://svnweb.freebsd.org/changeset/base/243109
Log:
Don't forget to unlock the pmap lock on failure.
Modified:
head/sys/arm/arm/pmap-v6.c
Modified: head/sys/arm/arm/pmap-v6.c
==============================================================================
--- head/sys/arm/arm/pmap-v6.c Thu Nov 15 23:49:07 2012 (r243108)
+++ head/sys/arm/arm/pmap-v6.c Fri Nov 16 00:14:02 2012 (r243109)
@@ -2361,8 +2361,10 @@ pmap_change_attr(vm_offset_t sva, vm_siz
* Only supported on kernel virtual addresses, including the direct
* map but excluding the recursive map.
*/
- if (base < DMAP_MIN_ADDRESS)
+ if (base < DMAP_MIN_ADDRESS) {
+ PMAP_UNLOCK(kernel_pmap);
return (EINVAL);
+ }
#endif
for (tmpva = base; tmpva < base + size; ) {
next_bucket = L2_NEXT_BUCKET(tmpva);
@@ -2377,8 +2379,10 @@ pmap_change_attr(vm_offset_t sva, vm_siz
ptep = &l2b->l2b_kva[l2pte_index(tmpva)];
- if (*ptep == 0)
+ if (*ptep == 0) {
+ PMAP_UNLOCK(kernel_pmap);
return(EINVAL);
+ }
pte = *ptep &~ L2_S_CACHE_MASK;
cpu_idcache_wbinv_range(tmpva, PAGE_SIZE);
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