c2port: annotate bitfield for kmemcheck

This silences a false positive warning with kmemcheck.

Signed-off-by: Vegard Nossum <[e-mail]>

drivers/misc/c2port/core.c

···
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/kernel.h>
+#include <linux/kmemcheck.h>
 #include <linux/ctype.h>
 #include <linux/delay.h>
 #include <linux/idr.h>
···
 		return ERR_PTR(-EINVAL);
 
 	c2dev = kmalloc(sizeof(struct c2port_device), GFP_KERNEL);
+	kmemcheck_annotate_bitfield(c2dev, flags);
 	if (unlikely(!c2dev))
 		return ERR_PTR(-ENOMEM);
 

include/linux/c2port.h

···
  */
 
 #include <linux/device.h>
+#include <linux/kmemcheck.h>
 
 #define C2PORT_NAME_LEN			32
 
···
 /* Main struct */
 struct c2port_ops;
 struct c2port_device {
+	kmemcheck_bitfield_begin(flags);
 	unsigned int access:1;
 	unsigned int flash_access:1;
+	kmemcheck_bitfield_end(flags);
 
 	int id;
 	char name[C2PORT_NAME_LEN];