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Fix potential crash on delete file.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-03-09 18:16:18 +01:00
parent 599e5edbd1
commit be03298832
1 changed files with 2 additions and 2 deletions
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4
src/fs/flash.c
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@@ -114,11 +114,11 @@ uintptr_t allocate_free_addr(uint16_t size, bool persistent) {
}
int flash_clear_file(file_t *file) {
if (file == NULL) {
if (file == NULL || file->data == NULL) {
return CCID_OK;
}
uintptr_t base_addr =
(uintptr_t) (file->data - sizeof(uintptr_t) - sizeof(uint16_t) - sizeof(uintptr_t));
(uintptr_t)(file->data - sizeof(uintptr_t) - sizeof(uint16_t) - sizeof(uintptr_t));
uintptr_t prev_addr = flash_read_uintptr(base_addr + sizeof(uintptr_t));
uintptr_t next_addr = flash_read_uintptr(base_addr);
//printf("nc %lx->%lx %lx->%lx\r\n",prev_addr,flash_read_uintptr(prev_addr),base_addr,next_addr);