linux/include
Takashi Iwai fee2b871d8 ALSA: core: Add snd_card_free_on_error() helper
This is a small helper function to handle the error path more easily
when an error happens during the probe for the device with the
device-managed card.  Since devres releases in the reverser order of
the creations, usually snd_card_free() gets called at the last in the
probe error path unless it already reached snd_card_register() calls.
Due to this nature, when a driver expects the resource releases in
card->private_free, this might be called too lately.

As a workaround, one should call the probe like:

 static int __some_probe(...) { // do real probe.... }

 static int some_probe(...)
 {
	return snd_card_free_on_error(dev, __some_probe(dev, ...));
 }

so that the snd_card_free() is called explicitly at the beginning of
the error path from the probe.

This function will be used in the upcoming fixes to address the
regressions by devres usages.

Fixes: e8ad415b7a ("ALSA: core: Add managed card creation")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412093141.8008-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 11:47:57 +02:00
..
acpi USB/Thunderbolt changes for 5.17-rc1 2022-01-12 11:27:57 -08:00
asm-generic bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
clocksource
crypto lib/crypto: blake2s: move hmac construction into wireguard 2022-01-18 13:03:55 +01:00
drm Merge tag 'drm-msm-next-2021-12-26' of ssh://gitlab.freedesktop.org/drm/msm into drm-next 2021-12-29 14:02:44 +10:00
dt-bindings ASoC: dt-bindings: Document Microchip's PDMC 2022-03-08 13:38:58 +00:00
keys keys: X.509 public key issuer lookup without AKID 2022-01-09 00:18:42 +02:00
kunit kunit: replace kernel.h with the necessary inclusions 2022-01-20 08:52:54 +02:00
kvm RISCV: 2022-01-16 16:15:14 +02:00
linux spi: Add API to count spi acpi resources 2022-02-01 17:38:48 +00:00
math-emu
media
memory
misc
net Networking fixes for 5.17-rc1, including fixes from netfilter, bpf. 2022-01-20 10:57:05 +02:00
pcmcia
ras mm/hwpoison: remove MF_MSG_BUDDY_2ND and MF_MSG_POISONED_HUGE 2022-01-15 16:30:31 +02:00
rdma RDMA/core: Calculate UDP source port based on flow label or lqpn/rqpn 2022-01-07 19:34:01 -04:00
scsi Merge branch 'akpm' (patches from Andrew) 2022-01-22 11:28:23 +02:00
soc Networking changes for 5.17. 2022-01-10 19:06:09 -08:00
sound ALSA: core: Add snd_card_free_on_error() helper 2022-04-12 11:47:57 +02:00
target
trace fscache fixes 2022-01-22 10:59:32 +02:00
uapi ASoC: Updates for v5.18 2022-03-21 16:19:21 +01:00
vdso
video
xen xen: branch for v5.17-rc1 2022-01-12 16:42:00 -08:00