fs: ext4: fix symlink read function

The function ext4fs_read_symlink was unable to handle a symlink
which had target name of exactly 60 characters.

Signed-off-by: Ronald Zachariah <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>
Reviewed-by: Stephen Warren <[email protected]>
Cc: Tom Rini <[email protected]>

diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index 84fba767c1ad71e3a5df53c8bbd0696e2f690f81..40b798a43fa62e0237b3e70162efcaefc76a0f61 100644 (file)
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2040,7 +2040,7 @@ static char *ext4fs_read_symlink(struct ext2fs_node *node)
        if (!symlink)
                return 0;
 
-       if (__le32_to_cpu(diro->inode.size) <= 60) {
+       if (__le32_to_cpu(diro->inode.size) < sizeof(diro->inode.b.symlink)) {
                strncpy(symlink, diro->inode.b.symlink,
                         __le32_to_cpu(diro->inode.size));
        } else {