Added a check of the return value of the kobject_set_name function.

Signed-off-by: Anton Protopopov <a.s.protopo...@gmail.com>
---
 drivers/staging/comedi/comedi_fops.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/comedi_fops.c 
b/drivers/staging/comedi/comedi_fops.c
index 9d99fb3..dfeefa2 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2597,7 +2597,14 @@ static int __init comedi_init(void)
                return -EIO;
        cdev_init(&comedi_cdev, &comedi_fops);
        comedi_cdev.owner = THIS_MODULE;
-       kobject_set_name(&comedi_cdev.kobj, "comedi");
+
+       retval = kobject_set_name(&comedi_cdev.kobj, "comedi");
+       if (retval) {
+               unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
+                                        COMEDI_NUM_MINORS);
+               return retval;
+       }
+
        if (cdev_add(&comedi_cdev, MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS)) {
                unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
                                         COMEDI_NUM_MINORS);
-- 
1.8.3.4

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