[PATCH] media: lirc: Fix uninitialized variable in ir_lirc_transmit_ir()

[Dan Carpenter]

The "txbuf" is uninitialized when we call ir_raw_encode_scancode() so
this failure path would lead to a crash.

Fixes: a74b2bff5945 ("media: lirc: do not pass ERR_PTR to kfree")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index fae42f120aa4..5efe9cd2309a 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -295,7 +295,7 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const 
char __user *buf,
                ret = ir_raw_encode_scancode(scan.rc_proto, scan.scancode,
                                             raw, LIRCBUF_SIZE);
                if (ret < 0)
-                       goto out_kfree;
+                       goto out_free_raw;
 
                count = ret;
 
@@ -366,6 +366,7 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const 
char __user *buf,
        return n;
 out_kfree:
        kfree(txbuf);
+out_free_raw:
        kfree(raw);
 out_unlock:
        mutex_unlock(&dev->lock);