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c61711c1c9
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> |
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| .. | ||
| amd | ||
| imx | ||
| intel | ||
| mediatek | ||
| xtensa | ||
| compress.c | ||
| control.c | ||
| core.c | ||
| debug.c | ||
| iomem-utils.c | ||
| ipc.c | ||
| ipc3-control.c | ||
| ipc3-ops.h | ||
| ipc3-pcm.c | ||
| ipc3-topology.c | ||
| ipc3.c | ||
| Kconfig | ||
| loader.c | ||
| Makefile | ||
| nocodec.c | ||
| ops.c | ||
| ops.h | ||
| pcm.c | ||
| pm.c | ||
| sof-acpi-dev.c | ||
| sof-acpi-dev.h | ||
| sof-audio.c | ||
| sof-audio.h | ||
| sof-client-ipc-flood-test.c | ||
| sof-client-ipc-msg-injector.c | ||
| sof-client-probes.c | ||
| sof-client-probes.h | ||
| sof-client.c | ||
| sof-client.h | ||
| sof-of-dev.c | ||
| sof-of-dev.h | ||
| sof-pci-dev.c | ||
| sof-pci-dev.h | ||
| sof-priv.h | ||
| sof-utils.c | ||
| sof-utils.h | ||
| stream-ipc.c | ||
| topology.c | ||
| trace.c | ||