[media] IR/streamzap: fix usec to nsec conversion

There is an integer overflow here because 0x03000000 * 1000 is too large
for 31 bits.

rawir.duration should be in terms of nsecs.
IR_MAX_DURATION and 0x03000000 are already in terms of nsecs.
STREAMZAP_TIMEOUT and STREAMZAP_RESOLUTION are 255 and 256 respectively
and are in terms of usecs.

The original code had a deadline of 1.005 seconds and the new code has a
deadline of .065 seconds.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/IR/streamzap.c b/drivers/media/IR/streamzap.c
index 623ee2dc198e..86a4f68feea4 100644
--- a/drivers/media/IR/streamzap.c
+++ b/drivers/media/IR/streamzap.c
@@ -221,7 +221,7 @@ static void streamzap_callback(struct urb *urb)
         struct streamzap_ir *sz;
         unsigned int i;
         int len;
-        static int timeout = (((SZ_TIMEOUT * SZ_RESOLUTION) &
+        static int timeout = (((SZ_TIMEOUT * SZ_RESOLUTION * 1000) &
                                 IR_MAX_DURATION) | 0x03000000);
 
         if (!urb)
@@ -273,7 +273,7 @@ static void streamzap_callback(struct urb *urb)
                                 struct ir_raw_event rawir;
 
                                 rawir.pulse = false;
-                                rawir.duration = timeout * 1000;
+                                rawir.duration = timeout;
                                 sz->idle = true;
                                 if (sz->timeout_enabled)
                                         sz_push(sz, rawir);