On 02/26/2020 04:04 PM, Johan Hovold wrote:
On Wed, Feb 26, 2020 at 02:15:22PM +0800, Tiezhu Yang wrote:
There is no functional issue, just fix the following build warning:
CC drivers/usb/core/config.o
drivers/usb/core/config.c: In function ‘usb_get_configuration’:
drivers/usb/core/config.c:868:6: warning: ‘result’ may be used uninitialized in this function [-Wmaybe-uninitialized]
int result;
^
What compiler are you using? The warning is clearly bogus and it hasn't
been seen with any recent gcc at least.
[yangtiezhu@linux ~]$ gcc --version
gcc (GCC) 4.9.4 20160726 (Red Hat 4.9.4-14)
Copyright (C) 2015 Free Software Foundation, Inc.
The gcc version I used maybe too old,
if the warning is bogus, please ignore this patch.
Thanks,
Tiezhu Yang
Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
---
drivers/usb/core/config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index b7918f6..bb63ee0 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -865,7 +865,7 @@ int usb_get_configuration(struct usb_device *dev)
unsigned int cfgno, length;
unsigned char *bigbuffer;
struct usb_config_descriptor *desc;
- int result;
+ int result = 0;
if (ncfg > USB_MAXCONFIG) {
dev_warn(ddev, "too many configurations: %d, "
Johan
