From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Fri, 04 Dec 2015 13:19:49 +0000 Subject: [patch] prism54: off by one BUG_ON() test Message-Id: <20151204131949.GF12792@mwanda> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Luis R. Rodriguez" Cc: Kalle Valo , linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org This code was supposed to trigger a BUG() if we truncate the output but it's off by one so it allows one character to be truncated. Really drivers shouldn't call BUG_ON() and especially for something minor like this so I've changed it to a WARN_ON(). Signed-off-by: Dan Carpenter diff --git a/drivers/net/wireless/intersil/prism54/isl_ioctl.c b/drivers/net/wireless/intersil/prism54/isl_ioctl.c index ecbb054..48e8a97 100644 --- a/drivers/net/wireless/intersil/prism54/isl_ioctl.c +++ b/drivers/net/wireless/intersil/prism54/isl_ioctl.c @@ -2036,7 +2036,7 @@ format_event(islpci_private *priv, char *dest, const char *str, mlme->address, (error ? (mlme->code ? " : REJECTED " : " : ACCEPTED ") : ""), mlme->code); - BUG_ON(n > IW_CUSTOM_MAX); + WARN_ON(n >= IW_CUSTOM_MAX); *length = n; }