SDB: Checked the length of reading device description

Change-Id: I7a65070ce946d26c46194406695d387f2eda023a
Signed-off-by: shingil.kang <shingil.kang@samsung.com>

diff --git a/src/usb_linux.c b/src/usb_linux.c
index fcba4e85d47fdc96dc6391ce1fcfa408ea214a3d..e2a9d7200382141b94f43063654501fe2069a858 100644 (file)
--- a/src/usb_linux.c
+++ b/src/usb_linux.c
@@ -64,11 +64,13 @@ int register_device(const char* node, const char* serial) {
         return -1;
     }
 
-    if (read(fd, device_desc, sizeof(device_desc)) < 0) {
+    int length;
+    if ((length = read(fd, device_desc, sizeof(device_desc))) < 0) {
         LOG_DEBUG("failed to read usb node %s (%s)\n", node, strerror(errno));
         close(fd);
         return -1;
     }
+
     desc_current_ptr = device_desc;
 
     // get device descriptor from head first