summaryrefslogtreecommitdiffstats
path: root/drivers/staging
diff options
context:
space:
mode:
authorH Hartley Sweeten <hsweeten@visionengravers.com>2015-06-18 10:54:57 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-06-18 21:19:03 -0700
commite38576ce7301ddd5e39b969e3f2a136002fb429d (patch)
tree78426dc55083fe1f8dc8e3a31cafd80662693ac4 /drivers/staging
parentadda9ab042326572237df7fd6be42f746206a385 (diff)
downloadblackbird-obmc-linux-e38576ce7301ddd5e39b969e3f2a136002fb429d.tar.gz
blackbird-obmc-linux-e38576ce7301ddd5e39b969e3f2a136002fb429d.zip
staging: comedi: vmk80xx: sanity check context used to get the boardinfo
As done in all the comedi drivers that auto attach, sanity check the passed context that is used to get the boardinfo. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/comedi/drivers/vmk80xx.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index a87b1523165e..3af075aa3946 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -795,7 +795,10 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
struct vmk80xx_private *devpriv;
int ret;
- board = &vmk80xx_boardinfo[context];
+ if (context < ARRAY_SIZE(vmk80xx_boardinfo))
+ board = &vmk80xx_boardinfo[context];
+ if (!board)
+ return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
OpenPOWER on IntegriCloud