diff options
| author | Julia Lawall <julia@diku.dk> | 2010-10-15 15:00:06 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-10-15 21:57:44 +0200 |
| commit | 0d91f22b75347d9503b17a42b6c74d3f7750acd6 (patch) | |
| tree | 55167f95c826e3023bdc1cc436d282a02e7f8bad | |
| parent | ath9k: Null out references to stale pointers. (diff) | |
| download | linux-0d91f22b75347d9503b17a42b6c74d3f7750acd6.tar.xz linux-0d91f22b75347d9503b17a42b6c74d3f7750acd6.zip | |
drivers/net/wireless/p54/eeprom.c: Return -ENOMEM on memory allocation failure
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@
ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: <stable@kernel.org>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/p54/eeprom.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c index 8c05266d37f4..35b09aa0529b 100644 --- a/drivers/net/wireless/p54/eeprom.c +++ b/drivers/net/wireless/p54/eeprom.c @@ -261,8 +261,10 @@ static int p54_generate_channel_lists(struct ieee80211_hw *dev) list->max_entries = max_channel_num; list->channels = kzalloc(sizeof(struct p54_channel_entry) * max_channel_num, GFP_KERNEL); - if (!list->channels) + if (!list->channels) { + ret = -ENOMEM; goto free; + } for (i = 0; i < max_channel_num; i++) { if (i < priv->iq_autocal_len) { |