diff options
| author | Julia Lawall <julia@diku.dk> | 2010-08-11 12:10:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-23 20:50:16 -0700 |
| commit | 7c81aafaf059b81ead2330bc13db78269ef62612 (patch) | |
| tree | 4e98fbe0298e523231fa6b7d470d640d364aa712 /drivers/usb/gadget/m66592-udc.c | |
| parent | d187abb9a83e6c6b6e9f2ca17962bdeafb4bc903 (diff) | |
USB: gadget: 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/m66592-udc.c')
| -rw-r--r-- | drivers/usb/gadget/m66592-udc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index 166bf71fd34..e03058fe23c 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1609,6 +1609,7 @@ static int __init m66592_probe(struct platform_device *pdev) /* initialize ucd */ m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL); if (m66592 == NULL) { + ret = -ENOMEM; pr_err("kzalloc error\n"); goto clean_up; } |