[PATCH v7 01/14] usb: chipidea: remove unneeded NULL check
From: Richard Zhao <hidden>
Date: 2012-06-25 06:56:18
Also in:
linux-devicetree
Subsystem:
chipidea usb high speed dual role controller, the rest, usb subsystem · Maintainers:
Peter Chen, Linus Torvalds, Greg Kroah-Hartman
Possibly related (same subject, not in this thread)
- 2012-06-27 · Re: [PATCH v7 01/14] usb: chipidea: remove unneeded NULL check · Richard Zhao <hidden>
- 2012-06-26 · Re: [PATCH v7 01/14] usb: chipidea: remove unneeded NULL check · Marek Vasut <hidden>
- 2012-06-26 · Re: [PATCH v7 01/14] usb: chipidea: remove unneeded NULL check · Greg KH <hidden>
From: Alexander Shishkin <alexander.shishkin@linux.intel.com> As reported by Dan Carpenter, there is a NULL check in udc_start() that follows a dereference of the pointer that's being checked. However, at that point udc pointer shouldn't ever be NULL and if it is, the dereference should cause an oops. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Reported-by: Dan Carpenter <redacted> Acked-by: Felipe Balbi <redacted> --- drivers/usb/chipidea/udc.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 51f9694..cdb9212 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c@@ -1647,9 +1647,6 @@ static int udc_start(struct ci13xxx *udc) struct device *dev = udc->dev; int retval = 0; - if (!udc) - return -EINVAL; - spin_lock_init(&udc->lock); udc->gadget.ops = &usb_gadget_ops;
--
1.7.9.5