[patch 3/4] drm/qxl: array underflow in qxl_clientcap_ioctl()

> Actually there is no underflow. Oh, duh. You're right. Sorry for that. regards, dan carpenter

[patch 3/4] drm/qxl: array underflow in qxl_clientcap_ioctl()

We check that "byte" isn't writing beyond the end of the array but we also need to prevent array underflow. Signed-off-by: Dan Carpenter diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c index b2db482..552dc06 100644 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c +++ b/driver

[patch 3/4] drm/qxl: array underflow in qxl_clientcap_ioctl()

> > We check that "byte" isn't writing beyond the end of the array but we > also need to prevent array underflow. > > Signed-off-by: Dan Carpenter > > diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c > b/drivers/gpu/drm/qxl/qxl_ioctl.c > index b2db482..552dc06 100644 > --- a/drivers/gpu/drm/qxl/qxl