ASoC: SOF: imx: Fix devm_ioremap_resource check

devm_ioremap_resource does not return NULL on error
but an error pointer so we need to use IS_ERR to check
the return code.

While at it also pass the error code to dev_err_probe
to improve logging.

Fixes: bc163ba ("ASoC: Use of_reserved_mem_region_to_resource() for "memory-region"")
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://patch.msgid.link/20250902102101.378809-1-daniel.baluta@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: dbaluta

sound/soc/sof/imx/imx-common.c

@@ -316,9 +316,9 @@ static int imx_parse_ioremap_memory(struct snd_sof_dev *sdev)
 		}
 
 		sdev->bar[blk_type] = devm_ioremap_resource(sdev->dev, res);
-		if (!sdev->bar[blk_type])
+		if (IS_ERR(sdev->bar[blk_type]))
 			return dev_err_probe(sdev->dev,
-					     -ENOMEM,
+					     PTR_ERR(sdev->bar[blk_type]),
 					     "failed to ioremap %s region\n",
 					     chip_info->memory[i].name);
 	}