{
struct compat_flock64 fl;
+ BUILD_BUG_ON(sizeof(kfl->l_start) > sizeof(ufl->l_start));
+ BUILD_BUG_ON(sizeof(kfl->l_len) > sizeof(ufl->l_len));
+
memset(&fl, 0, sizeof(struct compat_flock64));
copy_flock_fields(&fl, kfl);
if (copy_to_user(ufl, &fl, sizeof(struct compat_flock64)))
if (err)
break;
err = fixup_compat_flock(&flock);
- if (err)
- return err;
- err = put_compat_flock(&flock, compat_ptr(arg));
+ if (!err)
+ err = put_compat_flock(&flock, compat_ptr(arg));
break;
case F_GETLK64:
case F_OFD_GETLK:
if (err)
break;
err = fcntl_getlk(f.file, convert_fcntl_cmd(cmd), &flock);
- if (err)
- break;
- err = fixup_compat_flock(&flock);
- if (err)
- return err;
- err = put_compat_flock64(&flock, compat_ptr(arg));
+ if (!err)
+ err = put_compat_flock64(&flock, compat_ptr(arg));
break;
case F_SETLK:
case F_SETLKW:
* F_SETSIG can change ->signum lockless in parallel, make
* sure we read it once and use the same value throughout.
*/
- int signum = ACCESS_ONCE(fown->signum);
+ int signum = READ_ONCE(fown->signum);
if (!sigio_perm(p, fown, signum))
return;