diff mbox

[1/5] drivers/net/wireless/ipw2x00/ipw2100.c: introduce missing initialization

Message ID 1345325159-7365-1-git-send-email-Julia.Lawall@lip6.fr (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Julia Lawall Aug. 18, 2012, 9:25 p.m. UTC 
From: Julia Lawall <Julia.Lawall@lip6.fr>

The result of one call to a function is tested, and then at the second call
to the same function, the previous result, and not the current result, is
tested again.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ret;
identifier f;
statement S1,S2;
@@

*ret = f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S1
... when any
*f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S2
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 drivers/net/wireless/ipw2x00/ipw2100.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

Stanislav Yakovlev Aug. 19, 2012, 9:36 a.m. UTC | #1 
Hello Julia,

On 19 August 2012 01:25, Julia Lawall <Julia.Lawall@lip6.fr> wrote:
> -       ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
> +       ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid,
> +                                 &len);

This is correct, but this line has one more typo. It should be

-&bssid
+bssid

according to the bssid definition in the beginning of the function:

u8 bssid[ETH_ALEN];

Could you fix this as well?

Thanks!
Stanislav.
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 8a34202..2f3f6f2 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -2042,7 +2042,8 @@  static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
 		return;
 	}
 	len = ETH_ALEN;
-	ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
+	ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid,
+				  &len);
 	if (ret) {
 		IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
 			       __LINE__);