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Date: Tue, 26 Dec 2023 06:50:15 +0800
From: kernel test robot <lkp@...el.com>
To: Zhipeng Lu <alexious@....edu.cn>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: hdsp: fix some memleaks in snd_hdsp_hwdep_ioctl
Hi Zhipeng,
kernel test robot noticed the following build warnings:
[auto build test WARNING on tiwai-sound/for-next]
[also build test WARNING on tiwai-sound/for-linus linus/master v6.7-rc7 next-20231222]
[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/Zhipeng-Lu/ALSA-hdsp-fix-some-memleaks-in-snd_hdsp_hwdep_ioctl/20231225-155210
base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
patch link: https://lore.kernel.org/r/20231224082533.3540468-1-alexious%40zju.edu.cn
patch subject: [PATCH] ALSA: hdsp: fix some memleaks in snd_hdsp_hwdep_ioctl
config: i386-buildonly-randconfig-004-20231225 (https://download.01.org/0day-ci/archive/20231226/202312260629.HwV1r2MX-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231226/202312260629.HwV1r2MX-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/202312260629.HwV1r2MX-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> sound/pci/rme9652/hdsp.c:4917:1: warning: unused label 'err' [-Wunused-label]
err:
^~~~
>> sound/pci/rme9652/hdsp.c:4918:9: warning: variable 'err' is uninitialized when used here [-Wuninitialized]
return err;
^~~
sound/pci/rme9652/hdsp.c:4732:9: note: initialize the variable 'err' to silence this warning
int err;
^
= 0
2 warnings generated.
vim +/err +4917 sound/pci/rme9652/hdsp.c
4727
4728 static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg)
4729 {
4730 struct hdsp *hdsp = hw->private_data;
4731 void __user *argp = (void __user *)arg;
4732 int err;
4733
4734 switch (cmd) {
4735 case SNDRV_HDSP_IOCTL_GET_PEAK_RMS: {
4736 struct hdsp_peak_rms __user *peak_rms = (struct hdsp_peak_rms __user *)arg;
4737
4738 err = hdsp_check_for_iobox(hdsp);
4739 if (err < 0)
4740 return err;
4741
4742 err = hdsp_check_for_firmware(hdsp, 1);
4743 if (err < 0)
4744 return err;
4745
4746 if (!(hdsp->state & HDSP_FirmwareLoaded)) {
4747 dev_err(hdsp->card->dev,
4748 "firmware needs to be uploaded to the card.\n");
4749 return -EINVAL;
4750 }
4751
4752 switch (hdsp->io_type) {
4753 case H9652:
4754 return hdsp_9652_get_peak(hdsp, peak_rms);
4755 case H9632:
4756 return hdsp_9632_get_peak(hdsp, peak_rms);
4757 default:
4758 return hdsp_get_peak(hdsp, peak_rms);
4759 }
4760 }
4761 case SNDRV_HDSP_IOCTL_GET_CONFIG_INFO: {
4762 struct hdsp_config_info info;
4763 unsigned long flags;
4764 int i;
4765
4766 err = hdsp_check_for_iobox(hdsp);
4767 if (err < 0)
4768 return err;
4769
4770 err = hdsp_check_for_firmware(hdsp, 1);
4771 if (err < 0)
4772 return err;
4773
4774 memset(&info, 0, sizeof(info));
4775 spin_lock_irqsave(&hdsp->lock, flags);
4776 info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
4777 info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
4778 if (hdsp->io_type != H9632)
4779 info.adatsync_sync_check = (unsigned char)hdsp_adatsync_sync_check(hdsp);
4780 info.spdif_sync_check = (unsigned char)hdsp_spdif_sync_check(hdsp);
4781 for (i = 0; i < ((hdsp->io_type != Multiface && hdsp->io_type != RPM && hdsp->io_type != H9632) ? 3 : 1); ++i)
4782 info.adat_sync_check[i] = (unsigned char)hdsp_adat_sync_check(hdsp, i);
4783 info.spdif_in = (unsigned char)hdsp_spdif_in(hdsp);
4784 info.spdif_out = (unsigned char)hdsp_toggle_setting(hdsp,
4785 HDSP_SPDIFOpticalOut);
4786 info.spdif_professional = (unsigned char)
4787 hdsp_toggle_setting(hdsp, HDSP_SPDIFProfessional);
4788 info.spdif_emphasis = (unsigned char)
4789 hdsp_toggle_setting(hdsp, HDSP_SPDIFEmphasis);
4790 info.spdif_nonaudio = (unsigned char)
4791 hdsp_toggle_setting(hdsp, HDSP_SPDIFNonAudio);
4792 info.spdif_sample_rate = hdsp_spdif_sample_rate(hdsp);
4793 info.system_sample_rate = hdsp->system_sample_rate;
4794 info.autosync_sample_rate = hdsp_external_sample_rate(hdsp);
4795 info.system_clock_mode = (unsigned char)hdsp_system_clock_mode(hdsp);
4796 info.clock_source = (unsigned char)hdsp_clock_source(hdsp);
4797 info.autosync_ref = (unsigned char)hdsp_autosync_ref(hdsp);
4798 info.line_out = (unsigned char)
4799 hdsp_toggle_setting(hdsp, HDSP_LineOut);
4800 if (hdsp->io_type == H9632) {
4801 info.da_gain = (unsigned char)hdsp_da_gain(hdsp);
4802 info.ad_gain = (unsigned char)hdsp_ad_gain(hdsp);
4803 info.phone_gain = (unsigned char)hdsp_phone_gain(hdsp);
4804 info.xlr_breakout_cable =
4805 (unsigned char)hdsp_toggle_setting(hdsp,
4806 HDSP_XLRBreakoutCable);
4807
4808 } else if (hdsp->io_type == RPM) {
4809 info.da_gain = (unsigned char) hdsp_rpm_input12(hdsp);
4810 info.ad_gain = (unsigned char) hdsp_rpm_input34(hdsp);
4811 }
4812 if (hdsp->io_type == H9632 || hdsp->io_type == H9652)
4813 info.analog_extension_board =
4814 (unsigned char)hdsp_toggle_setting(hdsp,
4815 HDSP_AnalogExtensionBoard);
4816 spin_unlock_irqrestore(&hdsp->lock, flags);
4817 if (copy_to_user(argp, &info, sizeof(info)))
4818 return -EFAULT;
4819 break;
4820 }
4821 case SNDRV_HDSP_IOCTL_GET_9632_AEB: {
4822 struct hdsp_9632_aeb h9632_aeb;
4823
4824 if (hdsp->io_type != H9632) return -EINVAL;
4825 h9632_aeb.aebi = hdsp->ss_in_channels - H9632_SS_CHANNELS;
4826 h9632_aeb.aebo = hdsp->ss_out_channels - H9632_SS_CHANNELS;
4827 if (copy_to_user(argp, &h9632_aeb, sizeof(h9632_aeb)))
4828 return -EFAULT;
4829 break;
4830 }
4831 case SNDRV_HDSP_IOCTL_GET_VERSION: {
4832 struct hdsp_version hdsp_version;
4833 int err;
4834
4835 if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4836 if (hdsp->io_type == Undefined) {
4837 err = hdsp_get_iobox_version(hdsp);
4838 if (err < 0)
4839 return err;
4840 }
4841 memset(&hdsp_version, 0, sizeof(hdsp_version));
4842 hdsp_version.io_type = hdsp->io_type;
4843 hdsp_version.firmware_rev = hdsp->firmware_rev;
4844 if (copy_to_user(argp, &hdsp_version, sizeof(hdsp_version)))
4845 return -EFAULT;
4846 break;
4847 }
4848 case SNDRV_HDSP_IOCTL_UPLOAD_FIRMWARE: {
4849 struct hdsp_firmware firmware;
4850 u32 __user *firmware_data;
4851 int err;
4852
4853 if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4854 /* SNDRV_HDSP_IOCTL_GET_VERSION must have been called */
4855 if (hdsp->io_type == Undefined) return -EINVAL;
4856
4857 if (hdsp->state & (HDSP_FirmwareCached | HDSP_FirmwareLoaded))
4858 return -EBUSY;
4859
4860 dev_info(hdsp->card->dev,
4861 "initializing firmware upload\n");
4862 if (copy_from_user(&firmware, argp, sizeof(firmware)))
4863 return -EFAULT;
4864 firmware_data = (u32 __user *)firmware.firmware_data;
4865
4866 if (hdsp_check_for_iobox (hdsp))
4867 return -EIO;
4868
4869 if (!hdsp->fw_uploaded) {
4870 hdsp->fw_uploaded = vmalloc(HDSP_FIRMWARE_SIZE);
4871 if (!hdsp->fw_uploaded)
4872 return -ENOMEM;
4873 }
4874
4875 if (copy_from_user(hdsp->fw_uploaded, firmware_data,
4876 HDSP_FIRMWARE_SIZE)) {
4877 err = -EFAULT;
4878 goto free_fw_uploaded;
4879 }
4880
4881 hdsp->state |= HDSP_FirmwareCached;
4882
4883 err = snd_hdsp_load_firmware_from_cache(hdsp);
4884 if (err < 0)
4885 goto free_fw_uploaded;
4886
4887 if (!(hdsp->state & HDSP_InitializationComplete)) {
4888 err = snd_hdsp_enable_io(hdsp);
4889 if (err < 0)
4890 goto free_fw_uploaded;
4891
4892 snd_hdsp_initialize_channels(hdsp);
4893 snd_hdsp_initialize_midi_flush(hdsp);
4894
4895 err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp);
4896 if (err < 0) {
4897 dev_err(hdsp->card->dev,
4898 "error creating alsa devices\n");
4899 goto free_fw_uploaded;
4900 }
4901 }
4902 break;
4903 }
4904 case SNDRV_HDSP_IOCTL_GET_MIXER: {
4905 struct hdsp_mixer __user *mixer = (struct hdsp_mixer __user *)argp;
4906 if (copy_to_user(mixer->matrix, hdsp->mixer_matrix, sizeof(unsigned short)*HDSP_MATRIX_MIXER_SIZE))
4907 return -EFAULT;
4908 break;
4909 }
4910 default:
4911 return -EINVAL;
4912 }
4913 return 0;
4914 free_fw_uploaded:
4915 vfree(hdsp->fw_uploaded);
4916 hdsp->fw_uploaded = NULL;
> 4917 err:
> 4918 return err;
4919 }
4920
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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