soundwire: amd_init: simplify with cleanup.h

Allocate the memory with scoped/cleanup.h to reduce error handling and
make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/soundwire/amd_init.c

···
  */
 
 #include <linux/acpi.h>
+#include <linux/cleanup.h>
 #include <linux/export.h>
 #include <linux/io.h>
 #include <linux/module.h>
···
 {
 	struct sdw_amd_ctx *ctx;
 	struct acpi_device *adev;
-	struct resource *sdw_res;
 	struct acp_sdw_pdata sdw_pdata[2];
 	struct platform_device_info pdevinfo[2];
 	u32 link_mask;
···
 
 	ctx->count = count;
 	ctx->link_mask = res->link_mask;
-	sdw_res = kzalloc(sizeof(*sdw_res), GFP_KERNEL);
+	struct resource *sdw_res __free(kfree) = kzalloc(sizeof(*sdw_res),
+							 GFP_KERNEL);
 	if (!sdw_res) {
 		kfree(ctx);
 		return NULL;
···
 		if (IS_ERR(ctx->pdev[index]))
 			goto err;
 	}
-	kfree(sdw_res);
 	return ctx;
 err:
 	while (index--) {
···
 		platform_device_unregister(ctx->pdev[index]);
 	}
 
-	kfree(sdw_res);
 	kfree(ctx);
 	return NULL;
 }