| commit | 7247c0caa23d94a1cb6b307edba9dc45fb0798d4 | [log] [tgz] |
|---|---|---|
| author | Akira Fujita <a-fujita@rs.jp.nec.com> | Thu Mar 04 00:34:58 2010 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Thu Mar 04 00:34:58 2010 -0500 |
| tree | 435dd65425ea98ce4e10396f27c7a2f02dde15c8 | |
| parent | 5fd5249aa36fad98c9fd5edced352939e54f9324 [diff] |
ext4: Fix the NULL reference in double_down_write_data_sem() If EXT4_IOC_MOVE_EXT ioctl is called with NULL donor_fd, fget() in ext4_ioctl() gets inappropriate file structure for donor; so we need to do this check earlier, before calling double_down_write_data_sem(). Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>