[PATCH AUTOSEL 5.18 02/41] pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux()

[PATCH AUTOSEL 5.18 02/41] pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux()

[Sasha Levin]

From: Haowen Bai <baihaowen@meizu.com>

[ Upstream commit 84a85d3fef2e75b1fe9fc2af6f5267122555a1ed ]

pdesc could be null but still dereference pdesc->name and it will lead to
a null pointer access. So we move a null check before dereference.

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Link: https://lore.kernel.org/r/1650508019-22554-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/aspeed/pinctrl-aspeed.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
index c94e24aadf92..83d47ff1cea8 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
@@ -236,11 +236,11 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function,
 		const struct aspeed_sig_expr **funcs;
 		const struct aspeed_sig_expr ***prios;
 
-		pr_debug("Muxing pin %s for %s\n", pdesc->name, pfunc->name);
-
 		if (!pdesc)
 			return -EINVAL;
 
+		pr_debug("Muxing pin %s for %s\n", pdesc->name, pfunc->name);
+
 		prios = pdesc->prios;
 
 		if (!prios)
-- 
2.35.1

[PATCH AUTOSEL 5.18 27/41] pinctrl: imx: Add the zero base flag for imx93

[Sasha Levin]

From: Jacky Bai <ping.bai@nxp.com>

[ Upstream commit fbc24ebc65507feb9728dc38197f90486148dda0 ]

On i.MX93, the pin mux reg offset is from 0x0,
so need to add the 'ZERO_OFFSET_VALID' flag to make
sure the pin at mux offset 0 can be found.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Link: https://lore.kernel.org/r/20220613031854.1571357-1-ping.bai@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/freescale/pinctrl-imx93.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/freescale/pinctrl-imx93.c b/drivers/pinctrl/freescale/pinctrl-imx93.c
index c0630f69e995..417e41b37a6f 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx93.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx93.c
@@ -239,6 +239,7 @@ static const struct pinctrl_pin_desc imx93_pinctrl_pads[] = {
 static const struct imx_pinctrl_soc_info imx93_pinctrl_info = {
 	.pins = imx93_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx93_pinctrl_pads),
+	.flags = ZERO_OFFSET_VALID,
 	.gpr_compatible = "fsl,imx93-iomuxc-gpr",
 };
 
-- 
2.35.1