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| author | Sudeep Dutt <sudeep.dutt@intel.com> | 2015-04-29 15:32:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 22:13:37 +0300 |
| commit | 74321d4c99fc1d2582085cbb614d5a3ea9da962d (patch) | |
| tree | 903b803d6a3ce4f7d49348b18b357dc69b4d4102 /drivers/misc/mic/host/mic_main.c | |
| parent | fdd9fd5c38afe732258a0af4c6be14f3fbd1585c (diff) | |
| download | linux-74321d4c99fc1d2582085cbb614d5a3ea9da962d.tar.xz | |
misc: mic: MIC host driver specific changes to enable SCIF
MIC host driver specific changes to enable SCIF. This patch implements
the SCIF hardware bus operations and registers a SCIF device on the
SCIF hardware bus.
Reviewed-by: Nikhil Rao <nikhil.rao@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mic/host/mic_main.c')
| -rw-r--r-- | drivers/misc/mic/host/mic_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c index ab37a3117d23..456462932151 100644 --- a/drivers/misc/mic/host/mic_main.c +++ b/drivers/misc/mic/host/mic_main.c @@ -67,6 +67,8 @@ static struct ida g_mic_ida; static struct class *g_mic_class; /* Base device node number for MIC devices */ static dev_t g_mic_devno; +/* Track the total number of MIC devices */ +atomic_t g_num_mics; static const struct file_operations mic_fops = { .open = mic_open, @@ -408,6 +410,7 @@ static int mic_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "cdev_add err id %d rc %d\n", mdev->id, rc); goto cleanup_debug_dir; } + atomic_inc(&g_num_mics); return 0; cleanup_debug_dir: mic_delete_debug_dir(mdev); @@ -459,6 +462,7 @@ static void mic_remove(struct pci_dev *pdev) return; mic_stop(mdev, false); + atomic_dec(&g_num_mics); cdev_del(&mdev->cdev); mic_delete_debug_dir(mdev); mutex_lock(&mdev->mic_mutex); @@ -478,6 +482,7 @@ static void mic_remove(struct pci_dev *pdev) ida_simple_remove(&g_mic_ida, mdev->id); kfree(mdev); } + static struct pci_driver mic_driver = { .name = mic_driver_name, .id_table = mic_pci_tbl, @@ -512,6 +517,7 @@ static int __init mic_init(void) } return ret; cleanup_debugfs: + ida_destroy(&g_mic_ida); mic_exit_debugfs(); class_destroy(g_mic_class); cleanup_chrdev: |