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 <hswee...@visionengravers.com>
---
v2: new patch
drivers/staging/comedi/drivers/vmk80xx.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c
b/drivers/staging/comedi/drivers/vmk80xx.c
index a87b152..3af075a 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;
--
2.4.3
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