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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-18 13:10:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-18 13:10:36 -0700
commit547af560ddbfe469ada2cad3009cbcfde313d73c (patch)
tree1f97e215de2d88d90ed34db24212dab69eb300b2 /arch/mips/kernel/scall32-o32.S
parentb0579fc089808b68c53a6a95d043db034468116c (diff)
parenta35bee8a2748abe9a40865f477aba0a9b85965fd (diff)
downloadop-kernel-dev-547af560ddbfe469ada2cad3009cbcfde313d73c.zip
op-kernel-dev-547af560ddbfe469ada2cad3009cbcfde313d73c.tar.gz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: MIPS: Enable ISA_DMA_API config to fix build failure MIPS: 32-bit: Fix build failure in asm/fcntl.h MIPS: Remove all generated vmlinuz* files on "make clean" MIPS: do_sigaltstack() expects userland pointers MIPS: Fix error values in case of bad_stack MIPS: Sanitize restart logics MIPS: secure_computing, syscall audit: syscall number should in r2, not r0. MIPS: Don't block signals if we'd failed to setup a sigframe
Diffstat (limited to 'arch/mips/kernel/scall32-o32.S')
-rw-r--r--arch/mips/kernel/scall32-o32.S11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 584415e..fbaabad 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -63,9 +63,9 @@ stack_done:
sw t0, PT_R7(sp) # set error flag
beqz t0, 1f
+ lw t1, PT_R2(sp) # syscall number
negu v0 # error
- sw v0, PT_R0(sp) # set flag for syscall
- # restarting
+ sw t1, PT_R0(sp) # save it for syscall restarting
1: sw v0, PT_R2(sp) # result
o32_syscall_exit:
@@ -104,9 +104,9 @@ syscall_trace_entry:
sw t0, PT_R7(sp) # set error flag
beqz t0, 1f
+ lw t1, PT_R2(sp) # syscall number
negu v0 # error
- sw v0, PT_R0(sp) # set flag for syscall
- # restarting
+ sw t1, PT_R0(sp) # save it for syscall restarting
1: sw v0, PT_R2(sp) # result
j syscall_exit
@@ -169,8 +169,7 @@ stackargs:
* We probably should handle this case a bit more drastic.
*/
bad_stack:
- negu v0 # error
- sw v0, PT_R0(sp)
+ li v0, EFAULT
sw v0, PT_R2(sp)
li t0, 1 # set error flag
sw t0, PT_R7(sp)
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