From 2b12c13637134897ba320bd8906a8d918ee7069b Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 9 Oct 2020 21:08:55 +0300 Subject: pinctrl: mcp23s08: Use full chunk of memory for regmap configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Andy Shevchenko Tested-by: Martin Hundebøll Link: https://lore.kernel.org/r/20201009180856.4738-1-andriy.shevchenko@linux.intel.com Tested-by: Jan Kundrát Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-mcp23s08_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pinctrl') 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; -- cgit v1.2.3