diff options
| author | Jeff Mahoney <jeffm@suse.com> | 2016-08-02 14:05:33 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:58:17 +0200 |
| commit | 8b61c699b03bb4b489c2e27f2a6b651fd143e765 (patch) | |
| tree | 9c390523bf893a5a6159b4f94d28bc9510166824 /fs | |
| parent | 5f642e66ece27778d8fb8b787cc890dfc6837301 (diff) | |
reiserfs: fix "new_insert_key may be used uninitialized ..."
commit 0a11b9aae49adf1f952427ef1a1d9e793dd6ffb6 upstream.
new_insert_key only makes any sense when it's associated with a
new_insert_ptr, which is initialized to NULL and changed to a
buffer_head when we also initialize new_insert_key. We can key off of
that to avoid the uninitialized warning.
Link: http://lkml.kernel.org/r/5eca5ffb-2155-8df2-b4a2-f162f105efed@suse.com
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/reiserfs/ibalance.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c index e1978fd89..58cce0c60 100644 --- a/fs/reiserfs/ibalance.c +++ b/fs/reiserfs/ibalance.c @@ -1082,8 +1082,9 @@ int balance_internal(struct tree_balance *tb, /* tree_balance structure insert_ptr); } - memcpy(new_insert_key_addr, &new_insert_key, KEY_SIZE); insert_ptr[0] = new_insert_ptr; + if (new_insert_ptr) + memcpy(new_insert_key_addr, &new_insert_key, KEY_SIZE); return order; } |