From: Vasiliy Kulikov <[email protected]> Function put_user may fail. Check for it.
Signed-off-by: Vasiliy Kulikov <[email protected]> --- I couldn't compile this driver at all, so it is not tested. drivers/staging/comedi/comedi_fops.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 1409131..a3c7183 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -537,7 +537,8 @@ static int do_chaninfo_ioctl(struct comedi_device *dev, x = (dev->minor << 28) | (it.subdev << 24) | (i << 16) | (s->range_table_list[i]->length); - put_user(x, it.rangelist + i); + if (put_user(x, it.rangelist + i)) + return -EFAULT; } #if 0 if (copy_to_user(it.rangelist, s->range_type_list, -- 1.7.0.4 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
