linux-kernel - drivers/usb/host/ohci-hcd.c:1318 ohci_hcd_mod

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Date:   Tue, 16 Mar 2021 11:32:54 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     kbuild@...ts.01.org, Stephen Boyd <sboyd@...nel.org>
Cc:     lkp@...el.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: drivers/usb/host/ohci-hcd.c:1318 ohci_hcd_mod_init() warn: ignoring
 unreachable code.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1a4431a5db2bf800c647ee0ed87f2727b8d6c29c
commit: bbd7ffdbef6888459f301c5889f3b14ada38b913 clk: Allow the common clk framework to be selectable
config: arm-randconfig-m031-20210316 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>

smatch warnings:
drivers/usb/host/ohci-hcd.c:1318 ohci_hcd_mod_init() warn: ignoring unreachable code.

vim +1318 drivers/usb/host/ohci-hcd.c

78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08  1313  
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1314  	return retval;
                                                                ^^^^^^^^^^^^^

5e16fabe5dbcff Sylvain Munaut          2006-12-13  1315  
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1316  	/* Error path */
78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08  1317  #ifdef TMIO_OHCI_DRIVER
78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08 @1318  	platform_driver_unregister(&TMIO_OHCI_DRIVER);
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unreachable

78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08  1319   error_tmio:
78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08  1320  #endif
3ee38d8bf46b36 Ben Dooks               2008-06-08  1321  #ifdef SM501_OHCI_DRIVER
78c73414f4f674 Dmitry Eremin-Solenikov 2008-10-08  1322  	platform_driver_unregister(&SM501_OHCI_DRIVER);
3ee38d8bf46b36 Ben Dooks               2008-06-08  1323   error_sm501:
3ee38d8bf46b36 Ben Dooks               2008-06-08  1324  #endif
de44743b033942 Benjamin Herrenschmidt  2007-01-15  1325  #ifdef SA1111_DRIVER
de44743b033942 Benjamin Herrenschmidt  2007-01-15  1326  	sa1111_driver_unregister(&SA1111_DRIVER);
de44743b033942 Benjamin Herrenschmidt  2007-01-15  1327   error_sa1111:
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1328  #endif
495a678fc62e85 Sylvain Munaut          2006-12-13  1329  #ifdef OF_PLATFORM_DRIVER
d35fb6417655eb Grant Likely            2011-02-22  1330  	platform_driver_unregister(&OF_PLATFORM_DRIVER);
de44743b033942 Benjamin Herrenschmidt  2007-01-15  1331   error_of_platform:
495a678fc62e85 Sylvain Munaut          2006-12-13  1332  #endif
6a6c957eba2081 Geoff Levand            2007-01-15  1333  #ifdef PS3_SYSTEM_BUS_DRIVER
7a4eb7fd50d4df Geoff Levand            2007-06-05  1334  	ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
6a6c957eba2081 Geoff Levand            2007-01-15  1335   error_ps3:
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1336  #endif
684c19e0d95f46 Tony Jones              2007-09-11  1337  	debugfs_remove(ohci_debug_root);
684c19e0d95f46 Tony Jones              2007-09-11  1338  	ohci_debug_root = NULL;
684c19e0d95f46 Tony Jones              2007-09-11  1339  
9beeee6584b9aa Alan Stern              2008-10-02  1340  	clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded);
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1341  	return retval;
5e16fabe5dbcff Sylvain Munaut          2006-12-13  1342  }

---
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