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misc: mark write buffer const

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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>
This commit is contained in:
John Keeping 2022-01-11 17:04:49 +00:00 committed by Tom Rini
parent 6f08eee67f
commit e44d2f5df9
2 changed files with 2 additions and 2 deletions
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2
drivers/misc/misc-uclass.c
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@ -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);

2
include/misc.h
View File

@ -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.