[PATCH 13/20] fastboot: Warn when cb_download is called with file still open

[Sascha Hauer]

Warn when we are about to open a new download file without having
closed the old one.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 common/fastboot.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/common/fastboot.c b/common/fastboot.c
index c800e89a65..7f5b8b6f03 100644
--- a/common/fastboot.c
+++ b/common/fastboot.c
@@ -337,6 +337,7 @@ int fastboot_handle_download_data(struct fastboot *fb, const void *buffer,
 void fastboot_download_finished(struct fastboot *fb)
 {
 	close(fb->download_fd);
+	fb->download_fd = 0;
 
 	printf("\n");
 
@@ -356,6 +357,11 @@ static void cb_download(struct fastboot *fb, const char *cmd)
 
 	init_progression_bar(fb->download_size);
 
+	if (fb->download_fd > 0) {
+		pr_err("%s called and %s is still opened\n", __func__, fb->tempname);
+		close(fb->download_fd);
+	}
+
 	fb->download_fd = open(fb->tempname, O_WRONLY | O_CREAT | O_TRUNC);
 	if (fb->download_fd < 0) {
 		fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, "internal error");
-- 
2.28.0