Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux...

[karo-tx-linux.git] / arch / arm / kernel / entry-common.S

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index e02790f28879c9969c0a1d4687a374c13eb98994..2d23ad985180d5f5ba2d79b6c42ec9480b722ab3 100644 (file)
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -48,6 +48,8 @@ work_pending:
        beq     no_work_pending
        mov     r0, sp                          @ 'regs'
        mov     r2, why                         @ 'syscall'
+       tst     r1, #_TIF_SIGPENDING            @ delivering a signal?
+       movne   why, #0                         @ prevent further restarts
        bl      do_notify_resume
        b       ret_slow_syscall                @ Check work again
 
@@ -457,11 +459,13 @@ ENDPROC(sys_clone_wrapper)
 
 sys_sigreturn_wrapper:
                add     r0, sp, #S_OFF
+               mov     why, #0         @ prevent syscall restart handling
                b       sys_sigreturn
 ENDPROC(sys_sigreturn_wrapper)
 
 sys_rt_sigreturn_wrapper:
                add     r0, sp, #S_OFF
+               mov     why, #0         @ prevent syscall restart handling
                b       sys_rt_sigreturn
 ENDPROC(sys_rt_sigreturn_wrapper)