mirror of
https://github.com/torvalds/linux.git
synced 2024-12-12 06:02:38 +00:00
383a44aec9
We add the ostd setting for mt8195. It introduces a KE for the
previous SoC which doesn't have ostd setting. This is the log:
Unable to handle kernel NULL pointer dereference at virtual address
0000000000000080
...
pc : mtk_smi_larb_config_port_gen2_general+0x64/0x130
lr : mtk_smi_larb_resume+0x54/0x98
...
Call trace:
mtk_smi_larb_config_port_gen2_general+0x64/0x130
pm_generic_runtime_resume+0x2c/0x48
__genpd_runtime_resume+0x30/0xa8
genpd_runtime_resume+0x94/0x2c8
__rpm_callback+0x44/0x150
rpm_callback+0x6c/0x78
rpm_resume+0x310/0x558
__pm_runtime_resume+0x3c/0x88
In the code: larbostd = larb->larb_gen->ostd[larb->larbid],
if "larb->larb_gen->ostd" is null, the "larbostd" is the offset(e.g.
0x80 above), it's also a valid value, then accessing "larbostd[i]" in the
"for" loop will cause the KE above. To avoid this issue, initialize
"larbostd" to NULL when the SoC doesn't have ostd setting.
Fixes:
|
||
|---|---|---|
| .. | ||
| samsung | ||
| tegra | ||
| .gitignore | ||
| atmel-ebi.c | ||
| atmel-sdramc.c | ||
| brcmstb_dpfe.c | ||
| bt1-l2-ctl.c | ||
| da8xx-ddrctl.c | ||
| dfl-emif.c | ||
| emif-asm-offsets.c | ||
| emif.c | ||
| emif.h | ||
| fsl_ifc.c | ||
| fsl-corenet-cf.c | ||
| jedec_ddr_data.c | ||
| jedec_ddr.h | ||
| jz4780-nemc.c | ||
| Kconfig | ||
| Makefile | ||
| mtk-smi.c | ||
| mvebu-devbus.c | ||
| of_memory.c | ||
| of_memory.h | ||
| omap-gpmc.c | ||
| pl172.c | ||
| pl353-smc.c | ||
| renesas-rpc-if.c | ||
| stm32-fmc2-ebi.c | ||
| ti-aemif.c | ||
| ti-emif-pm.c | ||
| ti-emif-sram-pm.S | ||