ksud: don't patch if it's already patched

tiann · Mar 11, 2024 · ce5aa99 · ce5aa99
1 parent 22a1276
commit ce5aa99
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/userspace/ksud/src/boot_patch.rs b/userspace/ksud/src/boot_patch.rs
@@ -162,10 +162,13 @@ pub fn patch(
             .status()?;
         ensure!(status.success(), "magiskboot unpack failed");
 
-        let status = do_cpio_cmd(&magiskboot, workding_dir.path(), "exists init");
-        if status.is_ok() {
-            // init exist, backup it.
-            do_cpio_cmd(&magiskboot, workding_dir.path(), "mv init init.real")?;
+        let is_kernelsu_patched = do_cpio_cmd(&magiskboot, workding_dir.path(), "exists kernelsu.ko").is_ok();
+        if !is_kernelsu_patched {
+            // kernelsu.ko is not exist, backup init if necessary
+            let status = do_cpio_cmd(&magiskboot, workding_dir.path(), "exists init");
+            if status.is_ok() {
+                do_cpio_cmd(&magiskboot, workding_dir.path(), "mv init init.real")?;
+            }
         }
 
         do_cpio_cmd(&magiskboot, workding_dir.path(), "add 0755 init init")?;