diff options
| -rw-r--r-- | arch/x86/kernel/i387.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 367f39d35e9c..009183276bb7 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c | |||
| @@ -341,7 +341,7 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset, | |||
| 341 | unsigned int pos, unsigned int count, | 341 | unsigned int pos, unsigned int count, |
| 342 | void *kbuf, void __user *ubuf) | 342 | void *kbuf, void __user *ubuf) |
| 343 | { | 343 | { |
| 344 | struct xsave_struct *xsave = &target->thread.fpu.state->xsave; | 344 | struct xsave_struct *xsave; |
| 345 | int ret; | 345 | int ret; |
| 346 | 346 | ||
| 347 | if (!cpu_has_xsave) | 347 | if (!cpu_has_xsave) |
| @@ -351,6 +351,8 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset, | |||
| 351 | if (ret) | 351 | if (ret) |
| 352 | return ret; | 352 | return ret; |
| 353 | 353 | ||
| 354 | xsave = &target->thread.fpu.state->xsave; | ||
| 355 | |||
| 354 | /* | 356 | /* |
| 355 | * Copy the 48bytes defined by the software first into the xstate | 357 | * Copy the 48bytes defined by the software first into the xstate |
| 356 | * memory layout in the thread struct, so that we can copy the entire | 358 | * memory layout in the thread struct, so that we can copy the entire |
| @@ -369,7 +371,7 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset, | |||
| 369 | unsigned int pos, unsigned int count, | 371 | unsigned int pos, unsigned int count, |
| 370 | const void *kbuf, const void __user *ubuf) | 372 | const void *kbuf, const void __user *ubuf) |
| 371 | { | 373 | { |
| 372 | struct xsave_struct *xsave = &target->thread.fpu.state->xsave; | 374 | struct xsave_struct *xsave; |
| 373 | int ret; | 375 | int ret; |
| 374 | 376 | ||
| 375 | if (!cpu_has_xsave) | 377 | if (!cpu_has_xsave) |
| @@ -379,6 +381,8 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset, | |||
| 379 | if (ret) | 381 | if (ret) |
| 380 | return ret; | 382 | return ret; |
| 381 | 383 | ||
| 384 | xsave = &target->thread.fpu.state->xsave; | ||
| 385 | |||
| 382 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1); | 386 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1); |
| 383 | /* | 387 | /* |
| 384 | * mxcsr reserved bits must be masked to zero for security reasons. | 388 | * mxcsr reserved bits must be masked to zero for security reasons. |
