mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 08:44:14 +08:00
[PATCH] x86_64: fix new out of line put_user()
The labels after the last put_user patch were misplaced so exceptions on the real mov instructions would not be handled. Noted by Brian Gerst <bgerst@didntduck.org>
This commit is contained in:
parent
21b7ef0c6c
commit
efab7739d9
@ -49,8 +49,8 @@ __put_user_2:
|
||||
jc 20f
|
||||
cmpq threadinfo_addr_limit(%r8),%rcx
|
||||
jae 20f
|
||||
2: decq %rcx
|
||||
movw %dx,(%rcx)
|
||||
decq %rcx
|
||||
2: movw %dx,(%rcx)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
20: decq %rcx
|
||||
@ -64,8 +64,8 @@ __put_user_4:
|
||||
jc 30f
|
||||
cmpq threadinfo_addr_limit(%r8),%rcx
|
||||
jae 30f
|
||||
3: subq $3,%rcx
|
||||
movl %edx,(%rcx)
|
||||
subq $3,%rcx
|
||||
3: movl %edx,(%rcx)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
30: subq $3,%rcx
|
||||
@ -79,8 +79,8 @@ __put_user_8:
|
||||
jc 40f
|
||||
cmpq threadinfo_addr_limit(%r8),%rcx
|
||||
jae 40f
|
||||
4: subq $7,%rcx
|
||||
movq %rdx,(%rcx)
|
||||
subq $7,%rcx
|
||||
4: movq %rdx,(%rcx)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
40: subq $7,%rcx
|
||||
|
Loading…
Reference in New Issue
Block a user