search for: destroy_device

..._create_with_groups() that solves the race condition you just caused here by creating and notifying userspace that the device is present, _before_ creating the sysfs files for it. > + if (rc) { > + dev_err(&pdev->dev, "sysfs_create_group failed rc %d\n", rc); > + goto destroy_device; > + } > + dev_info(&pdev->dev, "Probe successful for %s\n", mdev->name); Useless noise, remove it. > + return 0; > +destroy_device: > + device_destroy(g_mic.mic_class, MKDEV(MAJOR(g_mic.mdev_id), mdev->id)); > +unmap_aper: > + iounmap(mdev->mmio.va)...

..._create_with_groups() that solves the race condition you just caused here by creating and notifying userspace that the device is present, _before_ creating the sysfs files for it. > + if (rc) { > + dev_err(&pdev->dev, "sysfs_create_group failed rc %d\n", rc); > + goto destroy_device; > + } > + dev_info(&pdev->dev, "Probe successful for %s\n", mdev->name); Useless noise, remove it. > + return 0; > +destroy_device: > + device_destroy(g_mic.mic_class, MKDEV(MAJOR(g_mic.mdev_id), mdev->id)); > +unmap_aper: > + iounmap(mdev->mmio.va)...

...v->sdev); + dev_err(&pdev->dev, "device_create failed rc %d\n", rc); + goto unmap_aper; + } + + rc = sysfs_create_group(&mdev->sdev->kobj, &mdev->attr_group); + if (rc) { + dev_err(&pdev->dev, "sysfs_create_group failed rc %d\n", rc); + goto destroy_device; + } + dev_info(&pdev->dev, "Probe successful for %s\n", mdev->name); + return 0; +destroy_device: + device_destroy(g_mic.mic_class, MKDEV(MAJOR(g_mic.mdev_id), mdev->id)); +unmap_aper: + iounmap(mdev->mmio.va); +unmap_mmio: + iounmap(mdev->aper.va); +release_regions: +...

...e_with_groups failed rc %d\n", rc); goto smpt_uninit; } + mdev->state_sysfs = sysfs_get_dirent(mdev->sdev->kobj.sd, + NULL, "state"); + if (!mdev->state_sysfs) { + rc = -ENODEV; + dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc); + goto destroy_device; + } + + rc = mic_dp_init(mdev); + if (rc) { + dev_err(&pdev->dev, "mic_dp_init failed rc %d\n", rc); + goto sysfs_put; + } + mutex_lock(&mdev->mic_mutex); + + mdev->shutdown_db = mic_next_db(mdev); + mdev->shutdown_cookie = mic_request_irq(mdev, mic_shutdown_db, +...

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

...ev->dev); + dev_err(&pdev->dev, "device_create failed rc %d\n", rc); + goto smpt_uninit; + } + + rc = sysfs_create_group(&mdev->dev->kobj, &mdev->attr_group); + if (rc) { + dev_err(&pdev->dev, "sysfs_create_group failed rc %d\n", rc); + goto destroy_device; + } + mdev->state_sysfs = sysfs_get_dirent(mdev->dev->kobj.sd, + NULL, "state"); + if (!mdev->state_sysfs) { + rc = -ENODEV; + dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc); + goto destroy_group; + } + + rc = mic_dp_init(mdev); + if (rc) { +...

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after