OpenCloudOS-Kernel/sound
Ajit Kumar Pandey c61711c1c9
ASoC: SOF: Fix NULL pointer exception in sof_pci_probe callback
We are accessing "desc->ops" in sof_pci_probe without checking "desc"
pointer. This results in NULL pointer exception if pci_id->driver_data
i.e desc pointer isn't defined in sof device probe:

BUG: kernel NULL pointer dereference, address: 0000000000000060
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
RIP: 0010:sof_pci_probe+0x1e/0x17f [snd_sof_pci]
Code: Unable to access opcode bytes at RIP 0xffffffffc043dff4.
RSP: 0018:ffffac4b03b9b8d8 EFLAGS: 00010246

Add NULL pointer check for sof_dev_desc pointer to avoid such exception.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220426183357.102155-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-27 14:15:21 +01:00
..
ac97
aoa Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
arm ALSA: pxa2xx: Use managed PCM buffer allocation 2021-08-04 08:08:21 +02:00
atmel
core sound fixes for 5.18-rc1 2022-04-01 10:32:46 -07:00
drivers ALSA: virmidi: Remove duplicated code 2022-01-06 16:08:18 +01:00
firewire ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction 2022-03-04 17:23:21 +01:00
hda ASoC: Updates for v5.18 2022-03-21 16:19:21 +01:00
i2c
isa ALSA: cs4236: fix an incorrect NULL check on list iterator 2022-03-27 10:32:42 +02:00
mips ALSA: mips: Use platform_get_irq() to get the interrupt 2022-02-28 16:59:01 +01:00
oss
parisc parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci sound fixes for 5.18-rc1 2022-04-01 10:32:46 -07:00
pcmcia
ppc powerpc/machdep: Move sys_ctrler_t definition into pmac_feature.h 2022-02-07 21:02:20 +11:00
sh
soc ASoC: SOF: Fix NULL pointer exception in sof_pci_probe callback 2022-04-27 14:15:21 +01:00
sparc ALSA: sparc: no need to initialise statics to 0 2021-12-12 10:01:04 +01:00
spi sound updates for 5.18 2022-03-23 15:11:12 -07:00
synth ALSA: synth: missing check for possible NULL after the call to kstrdup 2021-11-09 07:18:50 +01:00
usb Merge branch 'for-next' into for-linus 2022-03-21 16:18:34 +01:00
virtio virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
x86 ALSA: x86: Use standard mmap helper for Intel HDMI LPE audio 2022-03-05 09:33:48 +01:00
xen xen/grant-table: remove readonly parameter from functions 2022-03-15 20:34:40 -05:00
Kconfig
Makefile
ac97_bus.c
last.c
sound_core.c sound: core: Remove redundant variable and return the last statement 2022-02-28 17:57:14 +01:00