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staging: comedi: vmk80xx: sanity check context used to get the boardinfo

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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>
This commit is contained in:
H Hartley Sweeten 2015-06-18 10:54:57 -07:00 committed by Greg Kroah-Hartman
parent adda9ab042
commit e38576ce73
1 changed files with 4 additions and 1 deletions
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5
drivers/staging/comedi/drivers/vmk80xx.c
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@ -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;