mirror of https://gitee.com/openkylin/linux.git
e78e1fdb28
Connecting master to an output port when GTH driver module is not loaded
triggers a NULL dereference:
> RIP: 0010:intel_th_set_output+0x35/0x70 [intel_th]
> Call Trace:
> ? sth_stm_link+0x12/0x20 [intel_th_sth]
> stm_source_link_store+0x164/0x270 [stm_core]
> dev_attr_store+0x17/0x30
> sysfs_kf_write+0x3e/0x50
> kernfs_fop_write+0xda/0x1b0
> __vfs_write+0x1b/0x40
> vfs_write+0xb9/0x1a0
> ksys_write+0x67/0xe0
> __x64_sys_write+0x1a/0x20
> do_syscall_64+0x57/0x1d0
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
Make sure the module in question is loaded and return an error if not.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes:
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| acpi.c | ||
| core.c | ||
| debug.c | ||
| debug.h | ||
| gth.c | ||
| gth.h | ||
| intel_th.h | ||
| msu-sink.c | ||
| msu.c | ||
| msu.h | ||
| pci.c | ||
| pti.c | ||
| pti.h | ||
| sth.c | ||
| sth.h | ||