firmware_helper: fix write count

[elogind.git] / extras / firmware / firmware_helper.c

diff --git a/extras/firmware/firmware_helper.c b/extras/firmware/firmware_helper.c
index 7b7a307298384ccdb16e8d10f48cb404d7dae482..45815137acb97c6f37b2e28b7f518c1a44a365fa 100644 (file)
--- a/extras/firmware/firmware_helper.c
+++ b/extras/firmware/firmware_helper.c
@@ -118,9 +118,9 @@ int main(int argc, char **argv) {
 
        count = 0;
        while (count < fw_buffer_size) {
-               int c;
+               ssize_t c;
 
-               c = write(fw_fd, fw_buffer+count, fw_buffer_size);
+               c = write(fw_fd, fw_buffer+count, fw_buffer_size-count);
                if (c <= 0) {
                        rc = errno;
                        close(fw_fd);