Commit 2651cc69 authored by Max Filippov's avatar Max Filippov

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: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 61e47e9b
...@@ -384,7 +384,8 @@ __SYSCALL(174, sys_chroot, 1) ...@@ -384,7 +384,8 @@ __SYSCALL(174, sys_chroot, 1)
#define __NR_pivot_root 175 #define __NR_pivot_root 175
__SYSCALL(175, sys_pivot_root, 2) __SYSCALL(175, sys_pivot_root, 2)
#define __NR_umount 176 #define __NR_umount 176
__SYSCALL(176, sys_umount, 2) __SYSCALL(176, sys_oldumount, 1)
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __NR_swapoff 177 #define __NR_swapoff 177
__SYSCALL(177, sys_swapoff, 1) __SYSCALL(177, sys_swapoff, 1)
#define __NR_sync 178 #define __NR_sync 178
......
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