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authorDavid S. Miller <davem@davemloft.net>2009-07-27 21:10:28 -0400
committerDavid S. Miller <davem@davemloft.net>2009-07-27 21:10:28 -0400
commit9a926d86b29a25456f1dd8c9df938e151b1c3978 (patch)
treee718df684012799022e726ebdc007b1eab9cf77a /arch/sparc/kernel/sys32.S
parent14d87e6c399f3942d63dff41447ff08a615d9a6b (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.S2
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)
138SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 138SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
139SIGN2(sys32_tee, sys_tee, %o0, %o1) 139SIGN2(sys32_tee, sys_tee, %o0, %o1)
140SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 140SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
141SIGN1(sys32_truncate, sys_truncate, %o1)
142SIGN1(sys32_ftruncate, sys_ftruncate, %o1)
141 143
142 .globl sys32_mmap2 144 .globl sys32_mmap2
143sys32_mmap2: 145sys32_mmap2: