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make xattr_resolve_handlers() safe to use with NULL ->s_xattr

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Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2016-05-25 17:34:41 -04:00
commit 0040773bff
1 changed files with 1 additions and 0 deletions
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1
fs/xattr.c
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@ -655,6 +655,7 @@ strcmp_prefix(const char *a, const char *a_prefix)
* operations to the correct xattr_handler.
*/
#define for_each_xattr_handler(handlers, handler) \
if (handlers) \
for ((handler) = *(handlers)++; \
(handler) != NULL; \
(handler) = *(handlers)++)