[linux-next:master 3458/8918] sound/soc/codecs/cs-amp-lib.c:534 cs_amp_create_debugfs() warn: 'dir' is an error pointer or valid

[linux-next:master 3458/8918] sound/soc/codecs/cs-amp-lib.c:534 cs_amp_create_debugfs() warn: 'dir' is an error pointer or valid

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Richard Fitzgerald <rf@opensource.cirrus.com>
CC: Mark Brown <broonie@kernel.org>
CC: Takashi Iwai <tiwai@suse.de>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   0f2995693867bfb26197b117cd55624ddc57582f
commit: cdd27fa3298ad2f39788804f7d09ab31af2b416c [3458/8918] ASoC: cs-amp-lib: Add helpers for factory calibration
:::::: branch date: 19 hours ago
:::::: commit date: 3 weeks ago
config: um-randconfig-r073-20251115 (https://download.01.org/0day-ci/archive/20251115/202511150837.pTOmpYet-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0

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
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202511150837.pTOmpYet-lkp@intel.com/

smatch warnings:
sound/soc/codecs/cs-amp-lib.c:534 cs_amp_create_debugfs() warn: 'dir' is an error pointer or valid

vim +/dir +534 sound/soc/codecs/cs-amp-lib.c

267b9cdee522d0 Richard Fitzgerald 2025-09-09  515  
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  516  /**
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  517   * cs_amp_create_debugfs - create a debugfs directory for a device
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  518   *
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  519   * @dev: pointer to struct device
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  520   *
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  521   * Creates a node under "cirrus_logic" in the root of the debugfs filesystem.
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  522   * This is for Cirrus-specific debugfs functionality to be grouped in a
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  523   * defined way, independently of the debugfs provided by ALSA/ASoC.
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  524   * The general ALSA/ASoC debugfs may not be enabled, and does not necessarily
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  525   * have a stable layout or naming convention.
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  526   *
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  527   * Return: Pointer to the dentry for the created directory, or -ENODEV.
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  528   */
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  529  struct dentry *cs_amp_create_debugfs(struct device *dev)
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  530  {
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  531  	struct dentry *dir;
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  532  
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  533  	dir = debugfs_lookup("cirrus_logic", NULL);
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21 @534  	if (!dir)
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  535  		dir = debugfs_create_dir("cirrus_logic", NULL);
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  536  
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  537  	return debugfs_create_dir(dev_name(dev), dir);
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  538  }
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  539  EXPORT_SYMBOL_NS_GPL(cs_amp_create_debugfs, "SND_SOC_CS_AMP_LIB");
cdd27fa3298ad2 Richard Fitzgerald 2025-10-21  540  

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