[PATCH] media: lirc: suppress false positive smatch warning

[Sean Young <sean@xxxxxxxx>]

The latest smatch says:

drivers/media/rc/lirc_dev.c:632 lirc_read_mode2() error: uninitialized symbol 'copied'.
drivers/media/rc/lirc_dev.c:671 lirc_read_scancode() error: uninitialized symbol 'copied'.

This is a false positive since in all reaching code paths, copied will
be set. Work around this by providing a zero initializer for copied.

Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: smatch@xxxxxxxxxxxxxxx
Signed-off-by: Sean Young <sean@xxxxxxxx>
---
 drivers/media/rc/lirc_dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 765375bda0c6..efa09beae6a7 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -601,7 +601,7 @@ static ssize_t lirc_read_mode2(struct file *file, char __user *buffer,
 {
 	struct lirc_fh *fh = file->private_data;
 	struct rc_dev *rcdev = fh->rc;
-	unsigned int copied;
+	unsigned int copied = 0;
 	int ret;
 
 	if (length < sizeof(unsigned int) || length % sizeof(unsigned int))
@@ -639,7 +639,7 @@ static ssize_t lirc_read_scancode(struct file *file, char __user *buffer,
 {
 	struct lirc_fh *fh = file->private_data;
 	struct rc_dev *rcdev = fh->rc;
-	unsigned int copied;
+	unsigned int copied = 0;
 	int ret;
 
 	if (length < sizeof(struct lirc_scancode) ||
-- 
2.35.1