5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sean Young <sean@xxxxxxxx>
commit c8a489f820179fb12251e262b50303c29de991ac upstream.
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@xxxxxxxxxxxxxxx
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/rc/lirc_dev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -286,7 +286,11 @@ static ssize_t lirc_transmit(struct file
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) {
