staging: kpc2000: prevent underflow in cpld_reconfigure()

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This function should not allow negative values of "wr_val".  If
negatives are allowed then capping the upper bound at 7 is
meaningless.  Let's make it unsigned.

Fixes: 7dc7967fc3 ("staging: kpc2000: add initial set of Daktronics drivers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200224103325.hrxdnaeqsthplu42@kili.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Dan Carpenter 2020-02-24 13:33:25 +03:00 • committed by Greg Kroah-Hartman

parent 580f57c2cf

commit 72db61d7d1

1 changed files with 2 additions and 2 deletions

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drivers/staging/kpc2000/kpc2000/core.c

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