[PATCH] gadget: f_thor: fix wrong file size cast

[Seung-Woo Kim]

Casting 32bit int value directly into 64bit unsigned type causes
wrong value for file size equal or larger than 2GB. Fix the wrong
file size by casting uint32_t first.

Fixes: commit 1fe9ae76b113 ("gadget: f_thor: update to support more than 4GB file as thor 5.0")
Reported-by: Junghoon Kim <jhoon20.kim at samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim at samsung.com>
---
 drivers/usb/gadget/f_thor.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c
index 88fc87f2e9..559ffb759e 100644
--- a/drivers/usb/gadget/f_thor.c
+++ b/drivers/usb/gadget/f_thor.c
@@ -266,8 +266,8 @@ static long long int process_rqt_download(const struct rqt_box *rqt)
 
 	switch (rqt->rqt_data) {
 	case RQT_DL_INIT:
-		thor_file_size = (unsigned long long int)rqt->int_data[0] +
-				 (((unsigned long long int)rqt->int_data[1])
+		thor_file_size = (uint64_t)(uint32_t)rqt->int_data[0] +
+				 (((uint64_t)(uint32_t)rqt->int_data[1])
 				  << 32);
 		debug("INIT: total %llu bytes\n", thor_file_size);
 		break;
@@ -280,8 +280,8 @@ static long long int process_rqt_download(const struct rqt_box *rqt)
 			break;
 		}
 
-		thor_file_size = (unsigned long long int)rqt->int_data[1] +
-				 (((unsigned long long int)rqt->int_data[2])
+		thor_file_size = (uint64_t)(uint32_t)rqt->int_data[1] +
+				 (((uint64_t)(uint32_t)rqt->int_data[2])
 				  << 32);
 		memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE);
 		f_name[F_NAME_BUF_SIZE] = '\0';
-- 
2.19.2