korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-14 06:24:53 +08:00
Code Issues Packages Projects Releases Wiki Activity

drivers/net/wireless/iwlwifi/iwl-agn.c: Fix return value from an unsigned function

Browse Source 
The function has an unsigned return type, but returns a negative constant
to indicate an error condition.  Another error condition in the same
function is indicated by returning 0, and indeed the only call to the
function checks for 0 to detect errors, so the return of a negative value
it converted to a return of 0.

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

// <smpl>
@exists@
identifier f;
constant C;
@@

 unsigned f(...)
 { <+...
*  return -C;
 ...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Julia Lawall 2010-09-05 21:00:26 +02:00 committed by John W. Linville
parent f4bbf922f3
commit 950094cb06
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -369,7 +369,7 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
if (!priv->beacon_ctx) {
IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
return -EINVAL;
return 0;
}
/* Initialize memory */