Hi John,

url:    
https://github.com/0day-ci/linux/commits/John-Stultz/dma-buf-Performance-improvements-for-system-heap-a-system-uncached-implementation/20201003-120520
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
bcf876870b95592b52519ed4aafcf9d95999bc9c
config: i386-randconfig-m021-20201002 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>

smatch warnings:
drivers/dma-buf/heaps/system_heap.c:496 system_heap_create() warn: passing zero 
to 'PTR_ERR'

vim +/PTR_ERR +496 drivers/dma-buf/heaps/system_heap.c

efa04fefebbd724 John Stultz     2019-12-03  478  static int 
system_heap_create(void)
efa04fefebbd724 John Stultz     2019-12-03  479  {
efa04fefebbd724 John Stultz     2019-12-03  480         struct 
dma_heap_export_info exp_info;
efa04fefebbd724 John Stultz     2019-12-03  481  
263e38f82cbb35b Andrew F. Davis 2019-12-16  482         exp_info.name = 
"system";
efa04fefebbd724 John Stultz     2019-12-03  483         exp_info.ops = 
&system_heap_ops;
efa04fefebbd724 John Stultz     2019-12-03  484         exp_info.priv = NULL;
efa04fefebbd724 John Stultz     2019-12-03  485  
efa04fefebbd724 John Stultz     2019-12-03  486         sys_heap = 
dma_heap_add(&exp_info);
efa04fefebbd724 John Stultz     2019-12-03  487         if (IS_ERR(sys_heap))
a2e10cdd2e4d12a John Stultz     2020-10-03  488                 return 
PTR_ERR(sys_heap);
efa04fefebbd724 John Stultz     2019-12-03  489  
553f4e0fafc5b3b John Stultz     2020-10-03  490         exp_info.name = 
"system-uncached";
553f4e0fafc5b3b John Stultz     2020-10-03  491         exp_info.ops = 
&system_uncached_heap_ops;
553f4e0fafc5b3b John Stultz     2020-10-03  492         exp_info.priv = NULL;
553f4e0fafc5b3b John Stultz     2020-10-03  493  
553f4e0fafc5b3b John Stultz     2020-10-03  494         sys_uncached_heap = 
dma_heap_add(&exp_info);
553f4e0fafc5b3b John Stultz     2020-10-03  495         if 
(IS_ERR(sys_uncached_heap))
553f4e0fafc5b3b John Stultz     2020-10-03 @496                 return 
PTR_ERR(sys_heap);
                                                                       
^^^^^^^^^^^^^^^^^
This should be return PTR_ERR(sys_uncached_heap);


---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

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