From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit a835d3a114ab0dc2f0d8c6963c3f53734b1c5965 ]
It is useful for debugging to have the error message printed when regmap initialisation fails. Add it to the driver.
Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Cc: Martin Hundebøll martin@geanix.com Link: https://lore.kernel.org/r/20201009180856.4738-2-andriy.shevchenko@linux.inte... Tested-by: Jan Kundrát jan.kundrat@cesnet.cz Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/pinctrl-mcp23s08_spi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-mcp23s08_spi.c b/drivers/pinctrl/pinctrl-mcp23s08_spi.c index 1f47a661b0a79..52e32634bb5a7 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08_spi.c +++ b/drivers/pinctrl/pinctrl-mcp23s08_spi.c @@ -126,6 +126,8 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev, copy->name = name;
mcp->regmap = devm_regmap_init(dev, &mcp23sxx_spi_regmap, mcp, copy); + if (IS_ERR(mcp->regmap)) + dev_err(dev, "regmap init failed for %s\n", mcp->chip.label); return PTR_ERR_OR_ZERO(mcp->regmap); }