| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202408221127.2O9Pauzi-lkp@intel.com>
Date: Thu, 22 Aug 2024 11:24:51 +0800
From: kernel test robot <lkp@...el.com>
To: Charles Han <hanchunchao@...pur.com>, neil.armstrong@...aro.org,
quic_jesszhan@...cinc.com, mripard@...nel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org, liuyanming@...system.com,
hanchunchao <hanchunchao@...pur.com>
Subject: Re: [PATCH] drm/panel/hx83102: fix null pointer dereference in
hx83102_get_modes
Hi Charles,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.11-rc4 next-20240821]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Charles-Han/drm-panel-hx83102-fix-null-pointer-dereference-in-hx83102_get_modes/20240821-191703
base: linus/master
patch link: https://lore.kernel.org/r/20240821095039.15282-1-hanchunchao%40inspur.com
patch subject: [PATCH] drm/panel/hx83102: fix null pointer dereference in hx83102_get_modes
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240822/202408221127.2O9Pauzi-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 26670e7fa4f032a019d23d56c6a02926e854e8af)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240822/202408221127.2O9Pauzi-lkp@intel.com/reproduce)
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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408221127.2O9Pauzi-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/gpu/drm/panel/panel-himax-hx83102.c:12:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:181:
In file included from arch/s390/include/asm/mmu_context.h:11:
In file included from arch/s390/include/asm/pgalloc.h:18:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/panel/panel-himax-hx83102.c:569:11: error: incompatible pointer types passing 'struct drm_device *' to parameter of type 'const struct device *' [-Werror,-Wincompatible-pointer-types]
569 | dev_err(connector->dev, "bad mode or failed to add mode\n");
| ^~~~~~~~~~~~~~
include/linux/dev_printk.h:154:44: note: expanded from macro 'dev_err'
154 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~
include/linux/dev_printk.h:110:11: note: expanded from macro 'dev_printk_index_wrap'
110 | _p_func(dev, fmt, ##__VA_ARGS__); \
| ^~~
include/linux/dev_printk.h:50:36: note: passing argument to parameter 'dev' here
50 | void _dev_err(const struct device *dev, const char *fmt, ...);
| ^
4 warnings and 1 error generated.
vim +569 drivers/gpu/drm/panel/panel-himax-hx83102.c
559
560 static int hx83102_get_modes(struct drm_panel *panel,
561 struct drm_connector *connector)
562 {
563 struct hx83102 *ctx = panel_to_hx83102(panel);
564 const struct drm_display_mode *m = ctx->desc->modes;
565 struct drm_display_mode *mode;
566
567 mode = drm_mode_duplicate(connector->dev, m);
568 if (!mode) {
> 569 dev_err(connector->dev, "bad mode or failed to add mode\n");
570 return -EINVAL;
571 }
572
573 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
574 drm_mode_set_name(mode);
575 drm_mode_probed_add(connector, mode);
576
577 connector->display_info.width_mm = ctx->desc->size.width_mm;
578 connector->display_info.height_mm = ctx->desc->size.height_mm;
579 connector->display_info.bpc = 8;
580
581 return 1;
582 }
583
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Powered by blists - more mailing lists