misc: mark write buffer const

The write operation in misc_ops already takes a "const void *" buffer,
but misc_write() takes a mutable "void *".  There's no reason for this,
so make misc_write() consistent with the standard write() prototype.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/misc/misc-uclass.c b/drivers/misc/misc-uclass.c
index cbfacc3801a39c5ecfc810666fece37f46f8a765..cfe9d562fa0d2fc5a9ca6f85926fcbfc499506ad 100644 (file)
--- a/drivers/misc/misc-uclass.c
+++ b/drivers/misc/misc-uclass.c
@@ -26,7 +26,7 @@ int misc_read(struct udevice *dev, int offset, void *buf, int size)
        return ops->read(dev, offset, buf, size);
 }
 
-int misc_write(struct udevice *dev, int offset, void *buf, int size)
+int misc_write(struct udevice *dev, int offset, const void *buf, int size)
 {
        const struct misc_ops *ops = device_get_ops(dev);
 

diff --git a/include/misc.h b/include/misc.h
index 82ec2ce79368b8bcea2ff719d1a5052fdfd41e4f..6f042625c9fcba545b932af233e6ca13a67853ed 100644 (file)
--- a/include/misc.h
+++ b/include/misc.h
@@ -28,7 +28,7 @@ int misc_read(struct udevice *dev, int offset, void *buf, int size);
  *
  * Return: number of bytes written if OK (may be < @size), -ve on error
  */
-int misc_write(struct udevice *dev, int offset, void *buf, int size);
+int misc_write(struct udevice *dev, int offset, const void *buf, int size);
 
 /**
  * misc_ioctl() - Assert command to the device, optional.