Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 09/34] regmap: dev_get_regmap_match(): fix string comparison | Date | Mon, 20 Jul 2020 17:37:42 -0400 |
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From: Marc Kleine-Budde <mkl@pengutronix.de>
[ Upstream commit e84861fec32dee8a2e62bbaa52cded6b05a2a456 ]
This function is used by dev_get_regmap() to retrieve a regmap for the specified device. If the device has more than one regmap, the name parameter can be used to specify one.
The code here uses a pointer comparison to check for equal strings. This however will probably always fail, as the regmap->name is allocated via kstrdup_const() from the regmap's config->name.
Fix this by using strcmp() instead.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/r/20200703103315.267996-1-mkl@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/base/regmap/regmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 320d23de02c29..927ebde1607be 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1363,7 +1363,7 @@ static int dev_get_regmap_match(struct device *dev, void *res, void *data) /* If the user didn't specify a name match any */ if (data) - return (*r)->name == data; + return !strcmp((*r)->name, data); else return 1; } -- 2.25.1
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