drivers/mailbox/mailbox-mpfs.c:255 mpfs_mbox_syscon_probe() warn: passing zero to 'PTR_ERR'

drivers/mailbox/mailbox-mpfs.c:255 mpfs_mbox_syscon_probe() warn: passing zero to 'PTR_ERR'

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Conor Dooley <conor.dooley@microchip.com>
CC: Jassi Brar <jassisinghbrar@gmail.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7eef7e306d3c40a0c5b9ff6adc9b273cc894dbd5
commit: a4123ffab9ece0c2d3d5c460724d49c4051fd279 mailbox: mpfs: support new, syscon based, devicetree configuration
date:   2 days ago
:::::: branch date: 18 hours ago
:::::: commit date: 2 days ago
config: hexagon-randconfig-r072-20241125 (https://download.01.org/0day-ci/archive/20241127/202411270409.cWyrOSWm-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)

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/202411270409.cWyrOSWm-lkp@intel.com/

smatch warnings:
drivers/mailbox/mailbox-mpfs.c:255 mpfs_mbox_syscon_probe() warn: passing zero to 'PTR_ERR'

vim +/PTR_ERR +255 drivers/mailbox/mailbox-mpfs.c

83d7b1560810e0 Conor Dooley 2021-06-24  242  
a4123ffab9ece0 Conor Dooley 2024-10-02  243  static inline int mpfs_mbox_syscon_probe(struct mpfs_mbox *mbox, struct platform_device *pdev)
83d7b1560810e0 Conor Dooley 2021-06-24  244  {
a4123ffab9ece0 Conor Dooley 2024-10-02  245  	mbox->control_scb = syscon_regmap_lookup_by_compatible("microchip,mpfs-control-scb");
a4123ffab9ece0 Conor Dooley 2024-10-02  246  	if (IS_ERR(mbox->control_scb))
a4123ffab9ece0 Conor Dooley 2024-10-02  247  		return PTR_ERR(mbox->control_scb);
83d7b1560810e0 Conor Dooley 2021-06-24  248  
a4123ffab9ece0 Conor Dooley 2024-10-02  249  	mbox->sysreg_scb = syscon_regmap_lookup_by_compatible("microchip,mpfs-sysreg-scb");
a4123ffab9ece0 Conor Dooley 2024-10-02  250  	if (IS_ERR(mbox->sysreg_scb))
a4123ffab9ece0 Conor Dooley 2024-10-02  251  		return PTR_ERR(mbox->sysreg_scb);
83d7b1560810e0 Conor Dooley 2021-06-24  252  
a4123ffab9ece0 Conor Dooley 2024-10-02  253  	mbox->mbox_base = devm_platform_ioremap_resource(pdev, 0);
a4123ffab9ece0 Conor Dooley 2024-10-02  254  	if (IS_ERR(mbox->ctrl_base))
a4123ffab9ece0 Conor Dooley 2024-10-02 @255  		return PTR_ERR(mbox->mbox_base);
a4123ffab9ece0 Conor Dooley 2024-10-02  256  
a4123ffab9ece0 Conor Dooley 2024-10-02  257  	return 0;
a4123ffab9ece0 Conor Dooley 2024-10-02  258  }
a4123ffab9ece0 Conor Dooley 2024-10-02  259  

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