diff options
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/arm_scmi/smc.c | 7 | ||||
| -rw-r--r-- | drivers/firmware/efi/efi.c | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/randomalloc.c | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/x86-stub.c | 7 |
4 files changed, 15 insertions, 3 deletions
diff --git a/drivers/firmware/arm_scmi/smc.c b/drivers/firmware/arm_scmi/smc.c index ac0bd51ef..42ea308a2 100644 --- a/drivers/firmware/arm_scmi/smc.c +++ b/drivers/firmware/arm_scmi/smc.c @@ -171,6 +171,13 @@ static int smc_chan_free(int id, void *p, void *data) struct scmi_chan_info *cinfo = p; struct scmi_smc *scmi_info = cinfo->transport_info; + /* + * Different protocols might share the same chan info, so a previous + * smc_chan_free call might have already freed the structure. + */ + if (!scmi_info) + return 0; + /* Ignore any possible further reception on the IRQ path */ if (scmi_info->irq > 0) free_irq(scmi_info->irq, scmi_info); diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 9077353d1..28d4defc5 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -194,6 +194,8 @@ static bool generic_ops_supported(void) name_size = sizeof(name); + if (!efi.get_next_variable) + return false; status = efi.get_next_variable(&name_size, &name, &guid); if (status == EFI_UNSUPPORTED) return false; diff --git a/drivers/firmware/efi/libstub/randomalloc.c b/drivers/firmware/efi/libstub/randomalloc.c index 7ba05719a..fff826f56 100644 --- a/drivers/firmware/efi/libstub/randomalloc.c +++ b/drivers/firmware/efi/libstub/randomalloc.c @@ -119,7 +119,7 @@ efi_status_t efi_random_alloc(unsigned long size, continue; } - target = round_up(md->phys_addr, align) + target_slot * align; + target = round_up(max_t(u64, md->phys_addr, alloc_min), align) + target_slot * align; pages = size / EFI_PAGE_SIZE; status = efi_bs_call(allocate_pages, EFI_ALLOCATE_ADDRESS, diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 784e1b2ae..dc50dda40 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -21,6 +21,8 @@ #include "efistub.h" #include "x86-stub.h" +extern char _bss[], _ebss[]; + const efi_system_table_t *efi_system_table; const efi_dxe_services_table_t *efi_dxe_table; static efi_loaded_image_t *image = NULL; @@ -432,6 +434,9 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, efi_status_t status; char *cmdline_ptr; + if (efi_is_native()) + memset(_bss, 0, _ebss - _bss); + efi_system_table = sys_table_arg; /* Check if we were booted by the EFI firmware */ @@ -950,8 +955,6 @@ fail: void efi_handover_entry(efi_handle_t handle, efi_system_table_t *sys_table_arg, struct boot_params *boot_params) { - extern char _bss[], _ebss[]; - memset(_bss, 0, _ebss - _bss); efi_stub_entry(handle, sys_table_arg, boot_params); } |