Messages in this thread | | | Subject | Re: [PATCH v2] usb: usb251xb: fix to avoid potential NULL pointer dereference | From | Richard Leitner <> | Date | Wed, 20 Mar 2019 11:00:14 +0100 |
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Hi, thanks for the updated patch.
Please find my comments below.
On 19/03/2019 21:26, Aditya Pakki wrote: > of_match_device in usb251xb_probe can fail and returns a NULL pointer. > The patch avoids a potential NULL pointer dereference in this scenario. > > --
This should be 3 dashes "---" ;-)
> v1: Fix to avoid return in case of error, per Richard's suggestion. > Signed-off-by: Aditya Pakki <pakki001@umn.edu>
This signed-off-by line should be in the commit message, not the "version history" which is not included in the commit.
Apart from that (if you send a fixed v3) feel free to add Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
regards;Richard.L
> --- > drivers/usb/misc/usb251xb.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c > index 4d72b7d1d383..bbfdb7447d6f 100644 > --- a/drivers/usb/misc/usb251xb.c > +++ b/drivers/usb/misc/usb251xb.c > @@ -612,7 +612,7 @@ static int usb251xb_probe(struct usb251xb *hub) > dev); > int err; > > - if (np) { > + if (np && of_id) { > err = usb251xb_get_ofdata(hub, > (struct usb251xb_data *)of_id->data); > if (err) { >
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