[PATCH] staging: speakup: (coding sytle) remove unnecessary space after a cast
kbuild test robot
lkp at intel.com
Thu Nov 19 18:41:45 UTC 2015
Hi Christian,
[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.4-rc1 next-20151119]
url: https://github.com/0day-ci/linux/commits/Christian-Colic/staging-speakup-coding-sytle-remove-unnecessary-space-after-a-cast/20151120-012835
config: i386-randconfig-a0-201546 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
drivers/staging/speakup/devsynth.c: In function 'speakup_file_write':
>> drivers/staging/speakup/devsynth.c:37:9: warning: 'bytes' may be used uninitialized in this function [-Wmaybe-uninitialized]
return (ssize_t)bytes;
^
vim +/bytes +37 drivers/staging/speakup/devsynth.c
21 size_t bytes;
22 unsigned long flags;
23 u_char buf[256];
24
25 if (!synth)
26 return -ENODEV;
27 while (count > 0) {
28 bytes = min(count, sizeof(buf));
29 if (copy_from_user(buf, ptr, bytes))
30 return -EFAULT;
31 count -= bytes;
32 ptr += bytes;
33 spin_lock_irqsave(&speakup_info.spinlock, flags);
34 synth_write(buf, bytes);
35 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
36 }
> 37 return (ssize_t)bytes;
38 }
39
40 static ssize_t speakup_file_read(struct file *fp, char __user *buf,
41 size_t nbytes, loff_t *ppos)
42 {
43 return 0;
44 }
45
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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