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authorMax Filippov <jcmvbkbc@gmail.com>2014-10-06 21:01:17 +0400
committerMax Filippov <jcmvbkbc@gmail.com>2014-10-21 13:28:41 +0400
commit2651cc6974d47fc43bef1cd8cd26966e4f5ba306 (patch)
treee2d37ac6ea82db341944ae30f7acb4432c85c2c9 /arch/xtensa
parent61e47e9b53fcaf9fe4c3d80b4aa86c5d1e040fcb (diff)
downloadlinux-2651cc6974d47fc43bef1cd8cd26966e4f5ba306.tar.xz
xtensa: re-wire umount syscall to sys_oldumount
Userspace actually passes single parameter (path name) to the umount syscall, so new umount just fails. Fix it by requesting old umount syscall implementation and re-wiring umount to it. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/include/uapi/asm/unistd.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index ee7b1527666b..db5bb72e2f4e 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -384,7 +384,8 @@ __SYSCALL(174, sys_chroot, 1)
#define __NR_pivot_root 175
__SYSCALL(175, sys_pivot_root, 2)
#define __NR_umount 176
-__SYSCALL(176, sys_umount, 2)
+__SYSCALL(176, sys_oldumount, 1)
+#define __ARCH_WANT_SYS_OLDUMOUNT
#define __NR_swapoff 177
__SYSCALL(177, sys_swapoff, 1)
#define __NR_sync 178