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author | David S. Miller <davem@davemloft.net> | 2009-07-27 21:10:28 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2009-07-27 21:10:28 -0400 |
commit | 9a926d86b29a25456f1dd8c9df938e151b1c3978 (patch) | |
tree | e718df684012799022e726ebdc007b1eab9cf77a /arch/sparc/kernel/sys32.S | |
parent | 14d87e6c399f3942d63dff41447ff08a615d9a6b (diff) |
sparc64: Sign extend length arg to truncate syscalls when compat.
The first thing sys_truncate() and sys_ftruncate() do is sign extend
the unsigned length arg to a signed type.
Thanks to Benjamin Herrenschmidt for the tip.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/sys32.S')
-rw-r--r-- | arch/sparc/kernel/sys32.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index f061c4dda9ef..577f8fab8b6b 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S | |||
@@ -138,6 +138,8 @@ SIGN2(sys32_splice, sys_splice, %o0, %o1) | |||
138 | SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) | 138 | SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) |
139 | SIGN2(sys32_tee, sys_tee, %o0, %o1) | 139 | SIGN2(sys32_tee, sys_tee, %o0, %o1) |
140 | SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) | 140 | SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) |
141 | SIGN1(sys32_truncate, sys_truncate, %o1) | ||
142 | SIGN1(sys32_ftruncate, sys_ftruncate, %o1) | ||
141 | 143 | ||
142 | .globl sys32_mmap2 | 144 | .globl sys32_mmap2 |
143 | sys32_mmap2: | 145 | sys32_mmap2: |