diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-10-09 21:08:55 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-11-05 11:30:17 +0100 |
| commit | 2b12c13637134897ba320bd8906a8d918ee7069b (patch) | |
| tree | 7cdae334b55308c1ee275e35c2cc95ccb8908f6f /drivers/pinctrl | |
| parent | 8045ec42d14c6f77b5e925d1421150c043dfb75d (diff) | |
| download | linux-2b12c13637134897ba320bd8906a8d918ee7069b.tar.bz2 | |
pinctrl: mcp23s08: Use full chunk of memory for regmap configuration
It appears that simplification of mcp23s08_spi_regmap_init() made
a regression due to wrong size calculation for dev_kmemdup() call.
It misses the fact that config variable is already a pointer, thus
the sizeof() calculation is wrong and only 4 or 8 bytes were copied.
Fix the parameters to devm_kmemdup() to copy a full chunk of memory.
Fixes: 0874758ecb2b ("pinctrl: mcp23s08: Refactor mcp23s08_spi_regmap_init()")
Reported-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20201009180856.4738-1-andriy.shevchenko@linux.intel.com
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-mcp23s08_spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-mcp23s08_spi.c b/drivers/pinctrl/pinctrl-mcp23s08_spi.c index 1f47a661b0a7..7c72cffe1412 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08_spi.c +++ b/drivers/pinctrl/pinctrl-mcp23s08_spi.c @@ -119,7 +119,7 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev, return -EINVAL; } - copy = devm_kmemdup(dev, &config, sizeof(config), GFP_KERNEL); + copy = devm_kmemdup(dev, config, sizeof(*config), GFP_KERNEL); if (!copy) return -ENOMEM; |