fs/ext4: Initialize group descriptor size for revision level 0 filesystems

genext2fs creates revision level 0 filesystems, which are not readable
by u-boot due to the initialized group descriptor size field.
f798b1dda1c5de818b806189e523d1b75db7e72d

Reported-by: Kever Yang <kever.yang@rock-chips.com>
Reported-by: FrostyBytes@protonmail.com
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Tested-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index bfebe7e..621c61e 100644 (file)
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2334,6 +2334,7 @@ int ext4fs_mount(unsigned part_length)
 
        if (le32_to_cpu(data->sblock.revision_level) == 0) {
                fs->inodesz = 128;
+               fs->gdsize = 32;
        } else {
                debug("EXT4 features COMPAT: %08x INCOMPAT: %08x RO_COMPAT: %08x\n",
                      __le32_to_cpu(data->sblock.feature_compatibility),