Staging: comedi: proc: Warn if unable to create proc entry

The proc entry is not essential for the comedi system as
evident by the support for !CONFIG_PROC_FS. So for failure
to create, just warn and continue loading.

Signed-off-by: Cheah Kok Cheong <[e-mail]>
Reviewed-by: Ian Abbott <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/comedi/proc.c

···
 
 void __init comedi_proc_init(void)
 {
-	proc_create("comedi", 0444, NULL, &comedi_proc_fops);
+	if (!proc_create("comedi", 0444, NULL, &comedi_proc_fops))
+		pr_warn("comedi: unable to create proc entry\n");
 }
 
 void comedi_proc_cleanup(void)