backports: add snd_card_new()

This is needed by drivers/media/pci/cx18/cx18-alsa-main.c

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/backport/backport-include/sound/core.h b/backport/backport-include/sound/core.h
new file mode 100644 (file)
index 0000000..beb8935
--- /dev/null
+++ b/backport/backport-include/sound/core.h
@@ -0,0 +1,20 @@
+#ifndef _BACKPORT_SOUND_CORE_H
+#define _BACKPORT_SOUND_CORE_H
+#include_next <sound/core.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
+#define snd_card_new LINUX_BACKPORT(snd_card_new)
+static inline
+int snd_card_new(struct device *parent, int idx, const char *xid,
+                struct module *module, int extra_size,
+                struct snd_card **card_ret)
+{
+       int ret;
+
+       ret = snd_card_create(idx, xid, module, extra_size, card_ret);
+       snd_card_set_dev(*card_ret, parent);
+       return ret;
+}
+#endif
+
+#endif /* _BACKPORT_SOUND_CORE_H */