storage: fix potential memory corruption and check return values

Author: michalpasztamobica

components/storage/blockdevice/COMPONENT_SPIF/SPIFBlockDevice.cpp

@@ -936,7 +936,10 @@ int SPIFBlockDevice::_reset_flash_mem()
                 tr_error("Sending RST failed");
                 status = -1;
             }
-            _is_mem_ready();
+            if (false == _is_mem_ready()) {
+                tr_error("Device not ready, write failed");
+                status = -1;
+            }
         }
     }
 

features/storage/filesystem/fat/ChaN/ff.cpp

@@ -2719,7 +2719,7 @@ void get_fileinfo (
 		if (wc == 0) { di = 0; break; }		/* Buffer overflow? */
 		di += wc;
 #else					/* ANSI/OEM output */
-		if (di <= FF_SFN_BUF) fno->altname[di++] = (TCHAR)wc;	/* Store it without any conversion */
+		if (di < FF_SFN_BUF) fno->altname[di++] = (TCHAR)wc;	/* Store it without any conversion */
 #endif
 	}
 	fno->altname[di] = 0;	/* Terminate the SFN  (null string means SFN is invalid) */

features/storage/filesystem/littlefs/littlefs/lfs.c

@@ -2481,7 +2481,7 @@ int lfs_deorphan(lfs_t *lfs) {
     }
 
     lfs_dir_t pdir = {.d.size = 0x80000000};
-    lfs_dir_t cwd = {.d.tail[0] = 0, .d.tail[1] = 1};
+    lfs_dir_t cwd = {.d.tail = {0,1}};
 
     // iterate over all directory directory entries
     while (!lfs_pairisnull(cwd.d.tail)) {