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[PATCH] s390: bug in setup_rt_frame
Consider return value of __put_user() when setting up a signal frame instead of ignoring it. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -358,8 +358,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
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} else {
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regs->gprs[14] = (unsigned long)
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frame->retcode | PSW_ADDR_AMODE;
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err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
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(u16 __user *)(frame->retcode));
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if (__put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
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(u16 __user *)(frame->retcode)))
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goto give_sigsegv;
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}
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/* Set up backchain. */
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