Fix this compiler warning:
drivers/media/i2c/imx334.c: In function 'imx334_parse_hw_config':
include/linux/dev_printk.h:112:2: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  112 |  _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
      |  ^~~~~~~~
drivers/media/i2c/imx334.c:783:6: note: 'ret' was declared here
  783 |  int ret;
      |      ^~~
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
        imx334->reset_gpio = devm_gpiod_get_optional(imx334->dev, "reset",
                                                     GPIOD_OUT_LOW);
        if (IS_ERR(imx334->reset_gpio)) {
-               dev_err(imx334->dev, "failed to get reset gpio %d", ret);
+               dev_err(imx334->dev, "failed to get reset gpio %ld",
+                       PTR_ERR(imx334->reset_gpio));
                return PTR_ERR(imx334->reset_gpio);
        }