From 4f14392880287461b2eb3f41f227f497b167ad3d Mon Sep 17 00:00:00 2001
From: Lume <141330891+Kniffler@users.noreply.github.com>
Date: Wed, 10 Jun 2026 21:32:01 +0100
Subject: [PATCH] Clarify file pointer handling with comments

Added comments to clarify file pointer handling in the function.
---
 Code/pico_multi_booter/sd_boot/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Code/pico_multi_booter/sd_boot/main.c b/Code/pico_multi_booter/sd_boot/main.c
index 69edf02..ef67f77 100644
--- a/Code/pico_multi_booter/sd_boot/main.c
+++ b/Code/pico_multi_booter/sd_boot/main.c
@@ -171,6 +171,9 @@ static bool __not_in_flash_func(load_program)(const char *filename)
         fclose(fp);
         return true;
     }
+	// We need to set the pointer back because is_same_existing_program will move the file pointer (fp)
+	// whether we like it or not.
+	fseek(fp, 0, SEEK_SET);
 	
     size_t program_size = 0;
     uint8_t buffer[FLASH_SECTOR_SIZE] = {0};