Return errno from download_bct() when stat() fails

stat() returns a hard-coded -1 on error. Return errno instead, so that
when main() calls error() with the returned value, the actual error can
be decoded. This transforms the error message from:

...: Unknown error -1

to e.g.:

...: No such file or directory

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Change-Id: I1c7503eeef2cebafeaf5d1cfba5626244979e3df
Reviewed-on: http://git-master/r/167774
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Allen Martin <amartin@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index f34acfe..98563be 100644
--- a/src/main.c
+++ b/src/main.c
@@ -511,7 +511,7 @@ static int download_bct(nv3p_handle_t h3p, char *filename)
 
 	ret = stat(filename, &sb);
 	if (ret)
-		return ret;
+		return errno;
 	arg.length = sb.st_size;
 
 	ret = nv3p_cmd_send(h3p, NV3P_CMD_DL_BCT, (uint8_t *)&arg);