diff options
author | Otavio Salvador <otavio@ossystems.com.br> | 2019-03-28 10:47:24 -0300 |
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committer | GitHub <noreply@github.com> | 2019-03-28 10:47:24 -0300 |
commit | 0a8ab17689e628c84a666195bfc6ab85d11cf057 (patch) | |
tree | 01630dc4a6935df99bf7d11d34ff8d384fed86e2 /arch/arm/vfp/vfpmodule.c | |
parent | 1e71d8c630cbc0d1f5d762fd019690b5cdb880ae (diff) | |
parent | 32aca03c2ce868d3412da0bb6ce6798c7bea357e (diff) |
Merge pull request #46 from toradex/4.9-2.3.x-imx
4.9 2.3.x imx
Diffstat (limited to 'arch/arm/vfp/vfpmodule.c')
-rw-r--r-- | arch/arm/vfp/vfpmodule.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 8e5e97989fda..00dd8cf36632 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -554,12 +554,11 @@ void vfp_flush_hwstate(struct thread_info *thread) * Save the current VFP state into the provided structures and prepare * for entry into a new function (signal handler). */ -int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, - struct user_vfp_exc __user *ufp_exc) +int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp, + struct user_vfp_exc *ufp_exc) { struct thread_info *thread = current_thread_info(); struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; - int err = 0; /* Ensure that the saved hwstate is up-to-date. */ vfp_sync_hwstate(thread); @@ -568,22 +567,19 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, * Copy the floating point registers. There can be unused * registers see asm/hwcap.h for details. */ - err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs, - sizeof(hwstate->fpregs)); + memcpy(&ufp->fpregs, &hwstate->fpregs, sizeof(hwstate->fpregs)); + /* * Copy the status and control register. */ - __put_user_error(hwstate->fpscr, &ufp->fpscr, err); + ufp->fpscr = hwstate->fpscr; /* * Copy the exception registers. */ - __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err); - __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); - __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); - - if (err) - return -EFAULT; + ufp_exc->fpexc = hwstate->fpexc; + ufp_exc->fpinst = hwstate->fpinst; + ufp_exc->fpinst2 = hwstate->fpinst2; /* Ensure that VFP is disabled. */ vfp_flush_hwstate(thread); |