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tty: constify tty_ldisc_receive_buf buffer pointer

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This is needed to work with the client operations which uses const ptrs.

Really, the flags pointer could be const, too, but this would be a tree
wide fix.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rob Herring 2017-01-16 16:54:31 -06:00 committed by Greg Kroah-Hartman
parent 3086365db6
commit c92d781f1a
2 changed files with 2 additions and 2 deletions
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2
drivers/tty/tty_buffer.c
View File

@ -422,7 +422,7 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string);
*
* Returns the number of bytes not processed
*/
int tty_ldisc_receive_buf(struct tty_ldisc *ld, unsigned char *p,
int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
char *f, int count)
{
if (ld->ops->receive_buf2)

2
include/linux/tty.h
View File

@ -657,7 +657,7 @@ extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
extern void tty_ldisc_release(struct tty_struct *tty);
extern void tty_ldisc_init(struct tty_struct *tty);
extern void tty_ldisc_deinit(struct tty_struct *tty);
extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, unsigned char *p,
extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
char *f, int count);
/* n_tty.c */