diff options
| author | Dave Young <dyoung@redhat.com> | 2014-08-14 17:15:29 +0800 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2014-10-03 18:40:59 +0100 |
| commit | 88f8abd594082b9c08789e8527e4e38116a963ec (patch) | |
| tree | dd8c8c0e51307e30663d87968ef3913ff063172f /arch/arm64 | |
| parent | 5ae3683c380e78aebc60d710617ba2c0dccc9e84 (diff) | |
| download | blackbird-op-linux-88f8abd594082b9c08789e8527e4e38116a963ec.tar.gz blackbird-op-linux-88f8abd594082b9c08789e8527e4e38116a963ec.zip | |
arm64/efi: uefi_init error handling fix
There's one early memmap leak in uefi_init error path, fix it and
slightly tune the error handling code.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Mark Salter <msalter@redhat.com>
Reported-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/efi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index e72f3100958f..6ed0362dd579 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -89,7 +89,8 @@ static int __init uefi_init(void) */ if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) { pr_err("System table signature incorrect\n"); - return -EINVAL; + retval = -EINVAL; + goto out; } if ((efi.systab->hdr.revision >> 16) < 2) pr_warn("Warning: EFI system table version %d.%02d, expected 2.00 or greater\n", @@ -103,6 +104,7 @@ static int __init uefi_init(void) for (i = 0; i < (int) sizeof(vendor) - 1 && *c16; ++i) vendor[i] = c16[i]; vendor[i] = '\0'; + early_memunmap(c16, sizeof(vendor)); } pr_info("EFI v%u.%.02u by %s\n", @@ -113,9 +115,8 @@ static int __init uefi_init(void) if (retval == 0) set_bit(EFI_CONFIG_TABLES, &efi.flags); - early_memunmap(c16, sizeof(vendor)); +out: early_memunmap(efi.systab, sizeof(efi_system_table_t)); - return retval; } |
