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Subject: media: lirc: drop trailing space from scancode transmit Author: Sean Young sean@mess.org Date: Fri Oct 6 22:31:52 2023 +0100

When transmitting, infrared drivers expect an odd number of samples; iow without a trailing space. No problems have been observed so far, so this is just belt and braces.

Fixes: 9b6192589be7 ("media: lirc: implement scancode sending") Cc: stable@vger.kernel.org Signed-off-by: Sean Young sean@mess.org Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl

drivers/media/rc/lirc_dev.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

---

diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index 043d23aaa3cb..a537734832c5 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -276,7 +276,11 @@ static ssize_t lirc_transmit(struct file *file, const char __user *buf, if (ret < 0) goto out_kfree_raw;

- count = ret; + /* drop trailing space */ + if (!(ret % 2)) + count = ret - 1; + else + count = ret;

txbuf = kmalloc_array(count, sizeof(unsigned int), GFP_KERNEL); if (!txbuf) {