From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org
Subject: [intel-linux-intel-lts:5.4/yocto 415/1142] drivers/misc/xlink-usb/local_host/u_xlink.c:1002 vpu_read_swid() error: uninitialized symbol 'BUF4'.
Date: Fri, 11 Dec 2020 11:34:08 +0300 [thread overview]
Message-ID: <20201211083408.GQ2767@kadam> (raw)
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tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto
head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143
commit: 5e9e6d86fe729cf81e8a0df5c53d326b9f2ec791 [415/1142] xlink-usb: XLink USB Remote and Local Host driver
config: i386-randconfig-m021-20201211 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/misc/xlink-usb/local_host/u_xlink.c:1002 vpu_read_swid() error: uninitialized symbol 'BUF4'.
vim +/BUF4 +1002 drivers/misc/xlink-usb/local_host/u_xlink.c
5e9e6d86fe729c Lai Jun Ann 2020-07-03 987 int *vpu_read_swid(void *data)
5e9e6d86fe729c Lai Jun Ann 2020-07-03 988 {
5e9e6d86fe729c Lai Jun Ann 2020-07-03 989 struct gs_port *port;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 990
5e9e6d86fe729c Lai Jun Ann 2020-07-03 991 port = ports[PORT_NUM].port;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 992 struct list_head *pool = &port->read_pool;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 993 int *BUF4;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 994 struct usb_request *req;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 995
5e9e6d86fe729c Lai Jun Ann 2020-07-03 996 while (!list_empty(pool)) {
5e9e6d86fe729c Lai Jun Ann 2020-07-03 997 req = list_entry(pool->next, struct usb_request, list);
5e9e6d86fe729c Lai Jun Ann 2020-07-03 998 list_del(&req->list);
5e9e6d86fe729c Lai Jun Ann 2020-07-03 999 BUF4 = req->buf;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1000 break;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1001 }
5e9e6d86fe729c Lai Jun Ann 2020-07-03 @1002 return BUF4;
^^^^^^^^^^^
Can this be called when the pool list is empty?
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1003 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild-all@lists.01.org
Subject: [intel-linux-intel-lts:5.4/yocto 415/1142] drivers/misc/xlink-usb/local_host/u_xlink.c:1002 vpu_read_swid() error: uninitialized symbol 'BUF4'.
Date: Fri, 11 Dec 2020 11:34:08 +0300 [thread overview]
Message-ID: <20201211083408.GQ2767@kadam> (raw)
[-- Attachment #1: Type: text/plain, Size: 2025 bytes --]
tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto
head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143
commit: 5e9e6d86fe729cf81e8a0df5c53d326b9f2ec791 [415/1142] xlink-usb: XLink USB Remote and Local Host driver
config: i386-randconfig-m021-20201211 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/misc/xlink-usb/local_host/u_xlink.c:1002 vpu_read_swid() error: uninitialized symbol 'BUF4'.
vim +/BUF4 +1002 drivers/misc/xlink-usb/local_host/u_xlink.c
5e9e6d86fe729c Lai Jun Ann 2020-07-03 987 int *vpu_read_swid(void *data)
5e9e6d86fe729c Lai Jun Ann 2020-07-03 988 {
5e9e6d86fe729c Lai Jun Ann 2020-07-03 989 struct gs_port *port;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 990
5e9e6d86fe729c Lai Jun Ann 2020-07-03 991 port = ports[PORT_NUM].port;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 992 struct list_head *pool = &port->read_pool;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 993 int *BUF4;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 994 struct usb_request *req;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 995
5e9e6d86fe729c Lai Jun Ann 2020-07-03 996 while (!list_empty(pool)) {
5e9e6d86fe729c Lai Jun Ann 2020-07-03 997 req = list_entry(pool->next, struct usb_request, list);
5e9e6d86fe729c Lai Jun Ann 2020-07-03 998 list_del(&req->list);
5e9e6d86fe729c Lai Jun Ann 2020-07-03 999 BUF4 = req->buf;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1000 break;
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1001 }
5e9e6d86fe729c Lai Jun Ann 2020-07-03 @1002 return BUF4;
^^^^^^^^^^^
Can this be called when the pool list is empty?
5e9e6d86fe729c Lai Jun Ann 2020-07-03 1003 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2020-12-11 8:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-11 8:34 Dan Carpenter [this message]
2020-12-11 8:34 ` [intel-linux-intel-lts:5.4/yocto 415/1142] drivers/misc/xlink-usb/local_host/u_xlink.c:1002 vpu_read_swid() error: uninitialized symbol 'BUF4' Dan Carpenter
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2020-12-11 3:42 kernel test robot
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