[U-Boot] [PATCH 1/1] efi_loader: fix EFI_FILE_PROTOCOL.GetInfo()

[Heinrich Schuchardt]

We check the existence of files with fs_exist(). This function calls
fs_close(). If we do not set the active block device again fs_opendir()
fails and we do not set the flag EFI_FILE_DIRECTORY. Due to this error the
`cd` command in the EFI shell fails.

So let's add the missing set_blk_dev(fh) call.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/efi_loader/efi_file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
index 1341f1b456..c949275ae2 100644
--- a/lib/efi_loader/efi_file.c
+++ b/lib/efi_loader/efi_file.c
@@ -200,6 +200,10 @@ static struct efi_file_handle *file_open(struct file_system *fs,
 			     fs_exists(fh->path)))
 			goto error;
 
+		/* fs_exists() calls fs_close(), so open file system again */
+		if (set_blk_dev(fh))
+			goto error;
+
 		/* figure out if file is a directory: */
 		fh->isdir = is_dir(fh);
 	} else {
-- 
2.20.1