change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/mmc/core/sdio_bus.c
..
..
@@ -295,6 +295,12 @@
295
295
 	if (!(func->card->quirks & MMC_QUIRK_NONSTD_SDIO))
296
296
 		sdio_free_func_cis(func);
297
297
 
298
+	/*
299
+	 * We have now removed the link to the tuples in the
300
+	 * card structure, so remove the reference.
301
+	 */
302
+	put_device(&func->card->dev);
303
+
298
304
 	kfree(func->info);
299
305
 	kfree(func->tmpbuf);
300
306
 	kfree(func);
..
..
@@ -324,6 +330,12 @@
324
330
 	func->card = card;
325
331
 
326
332
 	device_initialize(&func->dev);
333
+
334
+	/*
335
+	 * We may link to tuples in the card structure,
336
+	 * we need make sure we have a reference to it.
337
+	 */
338
+	get_device(&func->card->dev);
327
339
 
328
340
 	func->dev.parent = &card->dev;
329
341
 	func->dev.bus = &sdio_bus_type;
..
..
@@ -378,10 +390,9 @@
378
390
  */
379
391
 void sdio_remove_func(struct sdio_func *func)
380
392
 {
381
-	if (!sdio_func_present(func))
382
-		return;
393
+	if (sdio_func_present(func))
394
+		device_del(&func->dev);
383
395
 
384
-	device_del(&func->dev);
385
396
 	of_node_put(func->dev.of_node);
386
397
 	put_device(&func->dev);
387
398
 }