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Subject[PATCH] sound: Fix warnings relating to ignored return value in snd_card_register
Do not ignore the return of 'device_create_file' in
'snd_card_register' and thereby fixing the following warnings:

sound/core/init.c: In function 'snd_card_register':
sound/core/init.c:640: warning: ignoring return value of
'device_create_file', declared with attribute warn_unused_result
sound/core/init.c:641: warning: ignoring return value of
'device_create_file', declared with attribute warn_unused_result

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
---
sound/core/init.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/core/init.c b/sound/core/init.c
index af1e407..814d834 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -637,8 +637,10 @@ int snd_card_register(struct snd_card *card)
#endif
#ifndef CONFIG_SYSFS_DEPRECATED
if (card->card_dev) {
- device_create_file(card->card_dev, &card_id_attrs);
- device_create_file(card->card_dev, &card_number_attrs);
+ if ((err = device_create_file(card->card_dev, &card_id_attrs)) < 0)
+ return err;
+ if ((err = device_create_file(card->card_dev, &card_number_attrs)) < 0)
+ return err;
}
#endif
return 0;

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