Messages in this thread Patch in this message | | | From | Masahiro Yamada <> | Subject | [PATCH] usb: gadget: legacy: fix redundant initialization warnings from cppcheck | Date | Fri, 3 Apr 2020 22:16:51 +0900 |
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Fix the following cppcheck warnings:
drivers/usb/gadget/legacy/inode.c:1364:8: style: Redundant initialization for 'value'. The initialized value is overwritten$ value = -EOPNOTSUPP; ^ drivers/usb/gadget/legacy/inode.c:1331:15: note: value is initialized int value = -EOPNOTSUPP; ^ drivers/usb/gadget/legacy/inode.c:1364:8: note: value is overwritten value = -EOPNOTSUPP; ^ drivers/usb/gadget/legacy/inode.c:1817:8: style: Redundant initialization for 'value'. The initialized value is overwritten$ value = -EINVAL; ^ drivers/usb/gadget/legacy/inode.c:1787:18: note: value is initialized ssize_t value = len, length = len; ^ drivers/usb/gadget/legacy/inode.c:1817:8: note: value is overwritten value = -EINVAL; ^
Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> ---
I do not think this is my fault because the addressed commit did not touch this file, but the kbuild test robot sent me this report somehow:
https://lkml.org/lkml/2020/4/3/395
Anyway, the warnings are real, so I removed the redundant assignments. I re-ran cppcheck and confirmed the warnings have been fixed.
drivers/usb/gadget/legacy/inode.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index aa0de9e35afa..3afddd3bea6e 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -1361,7 +1361,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) req->buf = dev->rbuf; req->context = NULL; - value = -EOPNOTSUPP; switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: @@ -1784,7 +1783,7 @@ static ssize_t dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) { struct dev_data *dev = fd->private_data; - ssize_t value = len, length = len; + ssize_t value, length = len; unsigned total; u32 tag; char *kbuf; -- 2.17.1
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