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| author | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-02-13 21:53:43 +0200 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-02-13 22:55:35 +0200 |
| commit | bf904b238d7fa1a6eb82427ec803170f84c0b2e8 (patch) | |
| tree | 241c451dd9e9d2ec6cdd1dd2f31336e69d4c2b0d | |
| parent | d4315a6caf52192ef2b590698228559f81133a20 (diff) | |
| download | micropython-bf904b238d7fa1a6eb82427ec803170f84c0b2e8.tar.gz micropython-bf904b238d7fa1a6eb82427ec803170f84c0b2e8.zip | |
extmod/fsusermount: umount: Add NULL pointer checks.
| -rw-r--r-- | extmod/fsusermount.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/extmod/fsusermount.c b/extmod/fsusermount.c index 677961ea39..3265465c54 100644 --- a/extmod/fsusermount.c +++ b/extmod/fsusermount.c @@ -160,14 +160,14 @@ STATIC mp_obj_t fatfs_umount(mp_obj_t bdev_or_path_in) { const char *mnt_str = mp_obj_str_get_data(bdev_or_path_in, &mnt_len); for (; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - if (!memcmp(mnt_str, vfs->str, mnt_len + 1)) { + if (vfs != NULL && !memcmp(mnt_str, vfs->str, mnt_len + 1)) { break; } } } else { for (; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - if (bdev_or_path_in == vfs->readblocks[1]) { + if (vfs != NULL && bdev_or_path_in == vfs->readblocks[1]) { break; } } |