Destroy device node & unregister device class from sysfs while unloading driver
Signed-off-by: Rupesh Gujare <[email protected]> --- drivers/staging/ozwpan/ozcdev.c | 12 ++++++++---- 1 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index 929756a..d983219 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -42,6 +42,7 @@ struct oz_serial_ctx { /*------------------------------------------------------------------------------ */ static struct oz_cdev g_cdev; +struct class *g_oz_class; /*------------------------------------------------------------------------------ * Context: process and softirq */ @@ -330,7 +331,6 @@ const struct file_operations oz_fops = { int oz_cdev_register(void) { int err; - struct class *cl; struct device *dev; memset(&g_cdev, 0, sizeof(g_cdev)); err = alloc_chrdev_region(&g_cdev.devnum, 0, 1, "ozwpan"); @@ -348,12 +348,12 @@ int oz_cdev_register(void) oz_trace("Failed to add cdev\n"); goto out2; } - cl = class_create(THIS_MODULE, "ozmo_wpan"); - if (IS_ERR(cl)) { + g_oz_class = class_create(THIS_MODULE, "ozmo_wpan"); + if (IS_ERR(g_oz_class)) { oz_trace("Failed to register ozmo_wpan class\n"); goto out1; } - dev = device_create(cl, NULL, g_cdev.devnum, NULL, "ozwpan"); + dev = device_create(g_oz_class, NULL, g_cdev.devnum, NULL, "ozwpan"); if (IS_ERR(dev)) { oz_trace("Failed to create sysfs entry for cdev\n"); goto out1; @@ -373,6 +373,10 @@ int oz_cdev_deregister(void) { cdev_del(&g_cdev.cdev); unregister_chrdev_region(g_cdev.devnum, 1); + if (g_oz_class) { + device_destroy(g_oz_class, g_cdev.devnum); + class_destroy(g_oz_class); + } return 0; } /*------------------------------------------------------------------------------ -- 1.7.5.4 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
