include/linux/iio/iio.h:781 class___priv__iio_dev_mode_lock_try_direct_constructor() warn: passing zero to 'ERR_PTR'

BCC: [email protected]
CC: [email protected]
CC: [email protected]
TO: Radu Sabau <[email protected]>
CC: Jonathan Cameron <[email protected]>
CC: David Lechner <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dd3210c47e8d3ac6b4e9141fc68acc03b38c0ba3
commit: 40850443aa1239f71fc65b870a0f0ecd54e42c9d iio: adc: ad4691: add initial driver for AD4691 family
date:   6 weeks ago
:::::: branch date: 10 hours ago
:::::: commit date: 6 weeks ago
config: x86_64-randconfig-161-20260708 (https://download.01.org/0day-ci/archive/20260711/[email protected]/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
smatch: v0.5.0-9185-gbcc58b9c

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 40850443aa12 ("iio: adc: ad4691: add initial driver for AD4691 family")
| Reported-by: kernel test robot <[email protected]>
| Reported-by: Dan Carpenter <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/

smatch warnings:
include/linux/iio/iio.h:781 class___priv__iio_dev_mode_lock_try_direct_constructor() warn: passing zero to 'ERR_PTR'

vim +/ERR_PTR +781 include/linux/iio/iio.h

847ec80bbaa76a drivers/staging/iio/iio.h Jonathan Cameron 2009-08-18  772  
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  773  /*
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  774   * These classes are not meant to be used directly by drivers (hence the
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  775   * __priv__ prefix). Instead, documented wrapper macros are provided below to
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  776   * enforce the use of ACQUIRE() or guard() semantics and avoid the problematic
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  777   * scoped guard variants.
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  778   */
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  779  DEFINE_GUARD(__priv__iio_dev_mode_lock, struct iio_dev *,
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  780  	     __iio_dev_mode_lock(_T), __iio_dev_mode_unlock(_T));
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20 @781  DEFINE_GUARD_COND(__priv__iio_dev_mode_lock, _try_direct,
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  782  		  iio_device_claim_direct(_T));
7a38b75da1dc38 include/linux/iio/iio.h   Kurt Borja       2026-01-20  783  

:::::: The code at line 781 was first introduced by commit
:::::: 7a38b75da1dc38a8cd9563c41b87367b2475b975 iio: core: Add cleanup.h support for iio_device_claim_*()

:::::: TO: Kurt Borja <[email protected]>
:::::: CC: Jonathan Cameron <[email protected]>

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