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SubjectRe: [PATCH] staging: lirc: fix NULL pointer dereference
On Wed, Apr 02, 2014 at 05:18:39PM +0900, Daeseok Youn wrote:
>
> coccicheck says:
> drivers/staging/media/lirc/lirc_igorplugusb.c:226:15-21:
> ERROR: ir is NULL but dereferenced.
>
> Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
> ---
> drivers/staging/media/lirc/lirc_igorplugusb.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/lirc/lirc_igorplugusb.c b/drivers/staging/media/lirc/lirc_igorplugusb.c
> index f508a13..0ef393b 100644
> --- a/drivers/staging/media/lirc/lirc_igorplugusb.c
> +++ b/drivers/staging/media/lirc/lirc_igorplugusb.c
> @@ -223,8 +223,8 @@ static int unregister_from_lirc(struct igorplug *ir)
> int devnum;
>
> if (!ir) {
> - dev_err(&ir->usbdev->dev,
> - "%s: called with NULL device struct!\n", __func__);
> + printk(DRIVER_NAME "%s: called with NULL device struct!\n",
> + __func__);


It should be pr_err() or something. But actually "ir" can't be NULL so
just delete the whole condition.


> return -EINVAL;
> }

regards,
dan carpenter



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