From 0d91f22b75347d9503b17a42b6c74d3f7750acd6 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 15 Oct 2010 15:00:06 +0200 Subject: [PATCH] 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/) // @@ 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; } // Signed-off-by: Julia Lawall Cc: Acked-by: Christian Lamparter Signed-off-by: John W. Linville --- drivers/net/wireless/p54/eeprom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c index 8c05266..35b09aa 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) { -- 2.7.4