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authorSean Young <sean@mess.org>2023-10-06 22:31:52 +0100
committerHans Verkuil <hverkuil-cisco@xs4all.nl>2023-10-11 16:26:16 +0200
commitc8a489f820179fb12251e262b50303c29de991ac (patch)
treea034145bc4d6253f764f364069e61d358fc2a553 /drivers/media/rc
parent4f7efc71891462ab7606da7039f480d7c1584a13 (diff)
media: lirc: drop trailing space from scancode transmit
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>
Diffstat (limited to 'drivers/media/rc')
-rw-r--r--drivers/media/rc/lirc_dev.c6
1 files changed, 5 insertions, 1 deletions
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) {