From c3f686f152767b84893e474acd1a7758988dc369 Mon Sep 17 00:00:00 2001 From: Tobias Lorenz Date: Mon, 28 Jan 2008 22:43:13 -0300 Subject: [PATCH] V4L/DVB (7108): radio-si470x.c: check-after-use Adrian used the coverity checker against radio-si470x and found this: > The Coverity checker spotted the following check-after-use in > drivers/media/radio/radio-si470x.c: > > <-- snip --> > static void si470x_usb_driver_disconnect(struct usb_interface *intf) > { > struct si470x_device *radio = usb_get_intfdata(intf); > > del_timer_sync(&radio->timer); <------------------ > flush_scheduled_work(); > > usb_set_intfdata(intf, NULL); > if (radio) { <------------------ > video_unregister_device(radio->videodev); > kfree(radio->buffer); > kfree(radio); > } > } > <-- snip --> > > Either "radio" can be NULL and this case has to be properly handled or > the NULL check is not required. These two lines should indeed better be inside the if statement. Signed-off-by: Tobias Lorenz Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-si470x.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c index a2975c8b0095..7fdee3cc6e02 100644 --- a/drivers/media/radio/radio-si470x.c +++ b/drivers/media/radio/radio-si470x.c @@ -1439,11 +1439,10 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf) { struct si470x_device *radio = usb_get_intfdata(intf); - del_timer_sync(&radio->timer); - flush_scheduled_work(); - usb_set_intfdata(intf, NULL); if (radio) { + del_timer_sync(&radio->timer); + flush_scheduled_work(); video_unregister_device(radio->videodev); kfree(radio->buffer); kfree(radio); -- GitLab