diff options
| author | Nishka Dasgupta <nishkadg.linux@gmail.com> | 2019-08-08 13:21:04 +0530 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-28 12:40:31 +0300 |
| commit | 6597f0b0516ab078b9ed2df4dd9aea17275995cd (patch) | |
| tree | 440bba5caf913f9943451dcd5078e12812544ccc /drivers/mtd | |
| parent | 620df2497415a932abd0d9f59688af79f60de8bf (diff) | |
| download | linux-6597f0b0516ab078b9ed2df4dd9aea17275995cd.tar.bz2 | |
mtd: spi-nor: aspeed-smc: Add of_node_put()
Each iteration of for_each_available_child_of_node puts the previous
node, but in the case of a break from the middle of the loop, there is
no put, thus causing a memory leak. Upon termination of the loop
(whether by break or a natural exit), either ret will have a non-zero
value or child will be NULL. Hence add an of_node_put() that will
execute only when ret has a non-zero value, as calling of_node_put() on
a possible NULL value does not cause any further issues.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/aspeed-smc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c index 19b8757325d2..009c1da8574c 100644 --- a/drivers/mtd/spi-nor/aspeed-smc.c +++ b/drivers/mtd/spi-nor/aspeed-smc.c @@ -836,8 +836,10 @@ static int aspeed_smc_setup_flash(struct aspeed_smc_controller *controller, controller->chips[cs] = chip; } - if (ret) + if (ret) { + of_node_put(child); aspeed_smc_unregister(controller); + } return ret; } |