X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Farc%2Finclude%2Fasm%2Fuaccess.h;fp=kernel%2Farch%2Farc%2Finclude%2Fasm%2Fuaccess.h;h=d4d8df706efa738ae115ddf68b37dad2d8d271c9;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=d1da6032b715a7fea35d71fcedeeeb8cdfe590e4;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/arch/arc/include/asm/uaccess.h b/kernel/arch/arc/include/asm/uaccess.h
index d1da6032b..d4d8df706 100644
--- a/kernel/arch/arc/include/asm/uaccess.h
+++ b/kernel/arch/arc/include/asm/uaccess.h
@@ -83,7 +83,10 @@
 	"2:	;nop\n"				\
 	"	.section .fixup, \"ax\"\n"	\
 	"	.align 4\n"			\
-	"3:	mov %0, %3\n"			\
+	"3:	# return -EFAULT\n"		\
+	"	mov %0, %3\n"			\
+	"	# zero out dst ptr\n"		\
+	"	mov %1,  0\n"			\
 	"	j   2b\n"			\
 	"	.previous\n"			\
 	"	.section __ex_table, \"a\"\n"	\
@@ -101,7 +104,11 @@
 	"2:	;nop\n"				\
 	"	.section .fixup, \"ax\"\n"	\
 	"	.align 4\n"			\
-	"3:	mov %0, %3\n"			\
+	"3:	# return -EFAULT\n"		\
+	"	mov %0, %3\n"			\
+	"	# zero out dst ptr\n"		\
+	"	mov %1,  0\n"			\
+	"	mov %R1, 0\n"			\
 	"	j   2b\n"			\
 	"	.previous\n"			\
 	"	.section __ex_table, \"a\"\n"	\