linux-kernel - [PATCH 0/5] some smatch fixes

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Date:   Mon, 21 Jun 2021 13:56:44 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Andy Walls <awalls@...metrocast.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH 0/5] some smatch fixes

This 5 patch series addresses a couple of other smatch warnings.

One of the patches seem to be fixing an user-visible bug:

	media: uvc: don't do DMA on stack

Basically, input selection at the UVC driver seems broken, as it
is usind DMA on stack, which stopped working on Kernel 4.9.

In practice, the number of affected devices is probably small, as this
affects UVC devices with multiple inputs. The vast majority of UVC
ones have just one input.

Mauro Carvalho Chehab (5):
  media: dib8000: rewrite the init prbs logic
  media: uvc: don't do DMA on stack
  media: v4l2-flash-led-class: drop an useless check
  media: ivtv: prevent going past the hw arrays
  media: sti: don't copy past the size

 drivers/media/dvb-frontends/dib8000.c         | 56 ++++++++++-----
 drivers/media/pci/ivtv/ivtv-cards.h           | 68 +++++++++++++------
 drivers/media/pci/ivtv/ivtv-i2c.c             | 16 +++--
 drivers/media/platform/sti/delta/delta-ipc.c  |  3 +-
 drivers/media/usb/uvc/uvc_v4l2.c              | 10 ++-
 drivers/media/usb/uvc/uvcvideo.h              |  3 +
 .../media/v4l2-core/v4l2-flash-led-class.c    |  2 +-
 7 files changed, 106 insertions(+), 52 deletions(-)

-- 
2.31.1