[openwrt/openwrt] ramips: 5.15: handle return from device_reset in I2C driver

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/b786d744effff777ffa1fd478718ab9a7ab8a2e7

commit b786d744effff777ffa1fd478718ab9a7ab8a2e7
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Sat May 6 22:40:39 2023 +0200

    ramips: 5.15: handle return from device_reset in I2C driver
    
    Handle return from device reset in I2C driver. Don't fail on
    device_reset error but print a warning.
    
    Fix compilation warning:
    sound/soc/ralink/ralink-i2s.c: In function 'ralink_i2s_probe':
    sound/soc/ralink/ralink-i2s.c:885:9: error: ignoring return value of 'device_reset' declared with attribute 'warn_unused_result' [-Werror=unused-result]
      885 |         device_reset(&pdev->dev);
          |         ^~~~~~~~~~~~~~~~~~~~~~~~
    cc1: all warnings being treated as errors
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 .../patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch       | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch b/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch
index 5a4491c95a..da6f8e5a1e 100644
--- a/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch
+++ b/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch
@@ -69,7 +69,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
  obj-$(CONFIG_I2C_QUP)		+= i2c-qup.o
 --- /dev/null
 +++ b/drivers/i2c/busses/i2c-ralink.c
-@@ -0,0 +1,435 @@
+@@ -0,0 +1,440 @@
 +/*
 + * drivers/i2c/busses/i2c-ralink.c
 + *
@@ -245,7 +245,12 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +
 +static void rt_i2c_reset(struct rt_i2c *i2c)
 +{
-+	device_reset(i2c->adap.dev.parent);
++	int ret;
++
++	ret = device_reset(i2c->adap.dev.parent);
++	if (ret)
++		dev_err(i2c->dev, "Failed to reset device");
++
 +	barrier();
 +	rt_i2c_w32(i2c, i2c->clk_div, REG_CLKDIV_REG);
 +}