mtd: rawnand: diskonchip: fix a potential double free in doc_probe

When nand_scan() fails, it has cleaned up related resources
in its error paths. Therefore, the following nand_cleanup()
may lead to a double-free. One possible trace is:

doc_probe
  |-> nand_scan
  |     |-> nand_scan_with_ids
  |           |-> nand_scan_tail
  |                 |-> kfree(chip->data_buf) [First free]
  |
  |-> nand_cleanup
        |-> kfree(chip->data_buf) [Double free here]

Fix this by removing nand_cleanup() on failure of
nand_scan().

Signed-off-by: Dinghao Liu <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]

0 files changed, 0 insertions, 0 deletions