On Wed, Mar 22, 2017 at 02:01:37PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Reading and writing to mode[count - 1] implies the count should not
> be less than 1 so add a sanity check for this.
>
> Detected with CoverityScan, CID#1357345 ("Overflowed array index write")
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
This is harmless, of course, but count can't be zero. This is a sysfs
file so we test for zero size writes in sysfs_kf_write() and return
early.
regards,
dan carpenter
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