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authorJulien Thierry <julien.thierry@arm.com>2019-01-09 13:06:32 -0500
committerDavid A. Long <dave.long@linaro.org>2019-02-13 12:08:55 -0500
commit5c16a7817d7f1a9a5ba9523eb6b067204bbf60c9 (patch)
treede3a9691b4472282460bba7547c60e89ecfffa21
parentebaa766fd053c22f2a8dc8d87c81402f0bbc4291 (diff)
downloadlinux-linaro-stable-5c16a7817d7f1a9a5ba9523eb6b067204bbf60c9.tar.gz
ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc
Commit 5df7a99bdd0de4a0480320264c44c04543c29d5a upstream. In vfp_preserve_user_clear_hwstate, ufp_exc->fpinst2 gets assigned to itself. It should actually be hwstate->fpinst2 that gets assigned to the ufp_exc field. Fixes commit 3aa2df6ec2ca6bc143a65351cca4266d03a8bc41 ("ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state"). Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org>
-rw-r--r--arch/arm/vfp/vfpmodule.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index df3fa52c0aa3..00dd8cf36632 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -579,7 +579,7 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp,
*/
ufp_exc->fpexc = hwstate->fpexc;
ufp_exc->fpinst = hwstate->fpinst;
- ufp_exc->fpinst2 = ufp_exc->fpinst2;
+ ufp_exc->fpinst2 = hwstate->fpinst2;
/* Ensure that VFP is disabled. */
vfp_flush_hwstate(thread);