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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2014-05-19 08:31:07 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 02:58:57 +0400 |
| commit | 849b1333153c989b3618e05981fd23f61fcfdee4 (patch) | |
| tree | 6af38f48290c9aefe9d480e6c63eb04d1a7908b9 | |
| parent | 113229b881b866f3f53ad52cb88f3812ba0fe922 (diff) | |
| download | linux-849b1333153c989b3618e05981fd23f61fcfdee4.tar.xz | |
usb: gadget: make return of 0 explicit
Delete unnecessary local variable whose value is always 0 and that hides
the fact that the result is always 0.
A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
local idexpression ret;
expression e;
position p;
@@
-ret = 0;
... when != ret = e
return
- ret
+ 0
;
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/composite.c | 6 | ||||
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 4 |
2 files changed, 3 insertions, 7 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 042c66b71df8..f80151932053 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1312,9 +1312,7 @@ static void fill_ext_compat(struct usb_configuration *c, u8 *buf) static int count_ext_prop(struct usb_configuration *c, int interface) { struct usb_function *f; - int j, res; - - res = 0; + int j; f = c->interface[interface]; for (j = 0; j < f->os_desc_n; ++j) { @@ -1326,7 +1324,7 @@ static int count_ext_prop(struct usb_configuration *c, int interface) if (d && d->ext_compat_id) return d->ext_prop_count; } - return res; + return 0; } static int len_ext_prop(struct usb_configuration *c, int interface) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 8c06430dcc47..2b54955d3166 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -561,7 +561,6 @@ static int dummy_disable(struct usb_ep *_ep) struct dummy_ep *ep; struct dummy *dum; unsigned long flags; - int retval; ep = usb_ep_to_dummy_ep(_ep); if (!_ep || !ep->desc || _ep->name == ep0name) @@ -571,12 +570,11 @@ static int dummy_disable(struct usb_ep *_ep) spin_lock_irqsave(&dum->lock, flags); ep->desc = NULL; ep->stream_en = 0; - retval = 0; nuke(dum, ep); spin_unlock_irqrestore(&dum->lock, flags); dev_dbg(udc_dev(dum), "disabled %s\n", _ep->name); - return retval; + return 0; } static struct usb_request *dummy_alloc_request(struct usb_ep *_ep, |