Hi Luc,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   c85fb28b6f999db9928b841f63f1beeb3074eeca
commit: 80591e61a0f7e88deaada69844e4a31280c4a38f kbuild: tell sparse about the 
$ARCH
config: powerpc64-randconfig-m031-20201008 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

New smatch warnings:
sound/pci/au88x0/au88x0_core.c:2029 vortex_adb_checkinout() warn: signedness 
bug returning '(-22)'
sound/pci/rme9652/hdsp.c:4085 snd_hdsp_channel_info() warn: impossible 
condition '(hdsp->channel_map[channel] < 0) => (0-255 < 0)'

Old smatch warnings:
sound/pci/au88x0/au88x0_core.c:2046 vortex_adb_checkinout() warn: signedness 
bug returning '(-12)'
sound/pci/rme9652/hdsp.c:3338 snd_hdsp_proc_read() warn: argument 5 to %lx 
specifier is cast from pointer
sound/pci/rme9652/hdsp.c:5305 snd_hdsp_create() warn: 'hdsp->iobase' not 
released on lines: 5237.
sound/pci/rme9652/hdsp.c:5305 snd_hdsp_create() warn: 'pci' not released on 
lines: 5237.

vim +2029 sound/pci/au88x0/au88x0_core.c

^1da177e4c3f415 Linus Torvalds  2005-04-16  2001  static char
                                                         ^^^^
Is char unsigned on PowerPC?  I thought that was only on s390.

^1da177e4c3f415 Linus Torvalds  2005-04-16  2002  
vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
^1da177e4c3f415 Linus Torvalds  2005-04-16  2003  {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2004        int i, qty = 
resnum[restype], resinuse = 0;
^1da177e4c3f415 Linus Torvalds  2005-04-16  2005  
^1da177e4c3f415 Linus Torvalds  2005-04-16  2006        if (out) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2007                /* Gather used 
resources by all streams. */
^1da177e4c3f415 Linus Torvalds  2005-04-16  2008                for (i = 0; i < 
NR_ADB; i++) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2009                        
resinuse |= vortex->dma_adb[i].resources[restype];
^1da177e4c3f415 Linus Torvalds  2005-04-16  2010                }
^1da177e4c3f415 Linus Torvalds  2005-04-16  2011                resinuse |= 
vortex->fixed_res[restype];
^1da177e4c3f415 Linus Torvalds  2005-04-16  2012                /* Find and 
take free resource. */
^1da177e4c3f415 Linus Torvalds  2005-04-16  2013                for (i = 0; i < 
qty; i++) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2014                        if 
((resinuse & (1 << i)) == 0) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2015                                
if (resmap != NULL)
^1da177e4c3f415 Linus Torvalds  2005-04-16  2016                                
        resmap[restype] |= (1 << i);
^1da177e4c3f415 Linus Torvalds  2005-04-16  2017                                
else
^1da177e4c3f415 Linus Torvalds  2005-04-16  2018                                
        vortex->dma_adb[i].resources[restype] |= (1 << i);
ee419653a38de93 Takashi Iwai    2009-02-05  2019                                
/*
e7e69265b626976 Sudip Mukherjee 2014-09-08  2020                                
pr_debug(
ee419653a38de93 Takashi Iwai    2009-02-05  2021                                
       "vortex: ResManager: type %d out %d\n",
ee419653a38de93 Takashi Iwai    2009-02-05  2022                                
       restype, i);
ee419653a38de93 Takashi Iwai    2009-02-05  2023                                
*/
^1da177e4c3f415 Linus Torvalds  2005-04-16  2024                                
return i;
^1da177e4c3f415 Linus Torvalds  2005-04-16  2025                        }
^1da177e4c3f415 Linus Torvalds  2005-04-16  2026                }
^1da177e4c3f415 Linus Torvalds  2005-04-16  2027        } else {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2028                if (resmap == 
NULL)
^1da177e4c3f415 Linus Torvalds  2005-04-16 @2029                        return 
-EINVAL;
                                                                        
^^^^^^^^^^^^^^^

^1da177e4c3f415 Linus Torvalds  2005-04-16  2030                /* Checkin 
first resource of type restype. */
^1da177e4c3f415 Linus Torvalds  2005-04-16  2031                for (i = 0; i < 
qty; i++) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2032                        if 
(resmap[restype] & (1 << i)) {
^1da177e4c3f415 Linus Torvalds  2005-04-16  2033                                
resmap[restype] &= ~(1 << i);
ee419653a38de93 Takashi Iwai    2009-02-05  2034                                
/*
e7e69265b626976 Sudip Mukherjee 2014-09-08  2035                                
pr_debug(
ee419653a38de93 Takashi Iwai    2009-02-05  2036                                
       "vortex: ResManager: type %d in %d\n",
ee419653a38de93 Takashi Iwai    2009-02-05  2037                                
       restype, i);
ee419653a38de93 Takashi Iwai    2009-02-05  2038                                
*/
^1da177e4c3f415 Linus Torvalds  2005-04-16  2039                                
return i;
^1da177e4c3f415 Linus Torvalds  2005-04-16  2040                        }
^1da177e4c3f415 Linus Torvalds  2005-04-16  2041                }
^1da177e4c3f415 Linus Torvalds  2005-04-16  2042        }
70c84418bf74f58 Sudip Mukherjee 2014-10-13  2043        
dev_err(vortex->card->dev,
70c84418bf74f58 Sudip Mukherjee 2014-10-13  2044                "FATAL: 
ResManager: resource type %d exhausted.\n",
70c84418bf74f58 Sudip Mukherjee 2014-10-13  2045                restype);
^1da177e4c3f415 Linus Torvalds  2005-04-16  2046        return -ENOMEM;
^1da177e4c3f415 Linus Torvalds  2005-04-16  2047  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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