semihosting: create file in smh_fs_write_at()
If a file does not exist, it should be created.
Fixes: f676b45151c3 ("fs: Add semihosting filesystem")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/fs/semihostingfs.c b/fs/semihostingfs.c
index 96eb334..3592338 100644
--- a/fs/semihostingfs.c
+++ b/fs/semihostingfs.c
@@ -57,8 +57,12 @@
{
long fd, size, ret;
+ /* Try to open existing file */
fd = smh_open(filename, MODE_READ | MODE_BINARY | MODE_PLUS);
if (fd < 0)
+ /* Create new file */
+ fd = smh_open(filename, MODE_WRITE | MODE_BINARY);
+ if (fd < 0)
return fd;
ret = smh_seek(fd, pos);
if (ret < 0) {