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media: dvb_ca_en50221: off by one in dvb_ca_en50221_io_do_ioctl() 

The > should be >= so we don't read one element beyond the end of the
ca->slot_info[] array.  The array is allocated in dvb_ca_en50221_init().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Dan Carpenter 2018-07-04 05:48:35 -04:00 committed by Mauro Carvalho Chehab
parent 320905baa1
commit 6706fe55af
1 changed files with 1 additions and 1 deletions
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2
drivers/media/dvb-core/dvb_ca_en50221.c
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@ -1391,7 +1391,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
struct dvb_ca_slot *sl;
slot = info->num;
if ((slot > ca->slot_count) || (slot < 0)) {
if ((slot >= ca->slot_count) || (slot < 0)) {
err = -EINVAL;
goto out_unlock;
}