Re: [PATCH 5.10.y] comedi: Fix use of uninitialized data in insn_rw_emulate_bits()

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: e9cb26291d009243a4478a7ffb37b3a9175bfce9

Status in newer kernel trees:
6.15.y | Not found
6.12.y | Not found
6.6.y | Not found
6.1.y | Not found
5.15.y | Not found

Note: The patch differs from the upstream commit:
---
1:  e9cb26291d00 ! 1:  e45bff8c0acd comedi: Fix use of uninitialized data in insn_rw_emulate_bits()
    @@ Metadata
      ## Commit message ##
         comedi: Fix use of uninitialized data in insn_rw_emulate_bits()
     
    +    [ Upstream commit e9cb26291d009243a4478a7ffb37b3a9175bfce9 ]
    +
         For Comedi `INSN_READ` and `INSN_WRITE` instructions on "digital"
         subdevices (subdevice types `COMEDI_SUBD_DI`, `COMEDI_SUBD_DO`, and
         `COMEDI_SUBD_DIO`), it is common for the subdevice driver not to have
    @@ Commit message
         Link: https://lore.kernel.org/r/20250707153355.82474-1-abbotti@mev.co.uk
         Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
     
    - ## drivers/comedi/drivers.c ##
    -@@ drivers/comedi/drivers.c: static int insn_rw_emulate_bits(struct comedi_device *dev,
    + ## drivers/staging/comedi/drivers.c ##
    +@@ drivers/staging/comedi/drivers.c: static int insn_rw_emulate_bits(struct comedi_device *dev,
      	unsigned int _data[2];
      	int ret;
      

---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| origin/linux-5.10.y       | Success     | Success    |