2012/9/4 Ryan Mallon <rmal...@gmail.com> > > On 04/09/12 00:14, yan wrote: > > Signed-off-by: yan <clouds....@gmail.com> > > --- > > fs/proc/generic.c | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) > > > > diff --git a/fs/proc/generic.c b/fs/proc/generic.c > > index 9e8f631..38de015 100644 > > --- a/fs/proc/generic.c > > +++ b/fs/proc/generic.c > > @@ -616,10 +616,9 @@ static struct proc_dir_entry *__proc_create(struct > > proc_dir_entry **parent, > > > > len = strlen(fn); > > > > - ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, > > GFP_KERNEL); > > + ent = kzalloc(sizeof(struct proc_dir_entry) + len + 1, > > GFP_KERNEL); > > if (!ent) goto out; > > > > - memset(ent, 0, sizeof(struct proc_dir_entry)); > > memcpy(ent->name, fn, len + 1); > > ent->namelen = len; > > ent->mode = mode; > > Note that this change results in slightly different behaviour. Before > your change only sizeof(struct proc_dir_entry) is zero'ed by memset, and > then the name is filled in (the len + 1 part). After your change the > structure and the name field are both zeroed, so the name field is being > written to twice. The cost is probably negligible though.
Oh, I didn't notice that actually. Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
