From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
Mark Brown <broonie@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 08/19] regmap: dev_get_regmap_match(): fix string comparison
Date: Mon, 20 Jul 2020 17:38:39 -0400 [thread overview]
Message-ID: <20200720213851.407715-8-sashal@kernel.org> (raw)
In-Reply-To: <20200720213851.407715-1-sashal@kernel.org>
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 c7d946b745efe..d26b485ccc7d0 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1343,7 +1343,7 @@ 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
next prev parent reply other threads:[~2020-07-20 21:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 21:38 [PATCH AUTOSEL 4.19 01/19] HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 02/19] HID: alps: support devices with report id 2 Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 03/19] HID: steam: fixes race in handling device list Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 04/19] HID: apple: Disable Fn-key key-re-mapping on clone keyboards Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 05/19] dmaengine: tegra210-adma: Fix runtime PM imbalance on error Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 06/19] Input: add `SW_MACHINE_COVER` Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 07/19] spi: mediatek: use correct SPI_CFG2_REG MACRO Sasha Levin
2020-07-20 21:38 ` Sasha Levin [this message]
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 09/19] hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 10/19] dmaengine: ioat setting ioat timeout as module parameter Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 11/19] Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 12/19] Input: elan_i2c - only increment wakeup count on touch Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 13/19] usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init() Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 14/19] hwmon: (adm1275) Make sure we are reading enough data for different chips Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 15/19] hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe() Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 16/19] arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 17/19] x86: math-emu: Fix up 'cmp' insn for clang ias Sasha Levin
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 18/19] RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw Sasha Levin
2020-07-26 18:36 ` Palmer Dabbelt
2020-07-20 21:38 ` [PATCH AUTOSEL 4.19 19/19] SUNRPC reverting d03727b248d0 ("NFSv4 fix CLOSE not waiting for direct IO compeletion") Sasha Levin
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