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avoid crashing at the end of the list

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19217 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2006-11-07 00:51:33 +00:00
parent 73b7614aa0
commit c74d27255b
1 changed files with 3 additions and 2 deletions
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5
src/system/kernel/device_manager/attributes.c
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@ -348,11 +348,12 @@ pnp_get_next_attr(device_node_handle node, device_attr_handle *attr)
next = node->attributes; next = node->attributes;
} }
++next->ref_count; if (next)
++next->ref_count;
*attr = next; *attr = next;
benaphore_unlock(&gNodeLock); benaphore_unlock(&gNodeLock);
return B_OK; return next ? B_OK : B_ENTRY_NOT_FOUND;
} }