From ccf75290cc646316c3f1ca960ce71941ff72afab Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 19 Apr 2018 19:14:26 -0500 Subject: signal/parisc: Use force_sig_fault where appropriate Filling in struct siginfo before calling force_sig_info a tedious and error prone process, where once in a great while the wrong fields are filled out, and siginfo has been inconsistently cleared. Simplify this process by using the helper force_sig_fault. Which takes as a parameters all of the information it needs, ensures all of the fiddly bits of filling in struct siginfo are done properly and then calls force_sig_info. In short about a 5 line reduction in code for every time force_sig_info is called, which makes the calling function clearer. Cc: James Bottomley Cc: Helge Deller Cc: linux-parisc@vger.kernel.org Acked-by: Helge Deller # parisc Signed-off-by: "Eric W. Biederman" --- arch/parisc/math-emu/driver.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'arch/parisc/math-emu') diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c index 0d10efb53361..0590e05571d1 100644 --- a/arch/parisc/math-emu/driver.c +++ b/arch/parisc/math-emu/driver.c @@ -81,7 +81,6 @@ int handle_fpe(struct pt_regs *regs) { extern void printbinary(unsigned long x, int nbits); - struct siginfo si; unsigned int orig_sw, sw; int signalcode; /* need an intermediate copy of float regs because FPU emulation @@ -93,7 +92,6 @@ handle_fpe(struct pt_regs *regs) */ __u64 frcopy[36]; - clear_siginfo(&si); memcpy(frcopy, regs->fr, sizeof regs->fr); frcopy[32] = 0; @@ -118,11 +116,8 @@ handle_fpe(struct pt_regs *regs) memcpy(regs->fr, frcopy, sizeof regs->fr); if (signalcode != 0) { - si.si_signo = signalcode >> 24; - si.si_errno = 0; - si.si_code = signalcode & 0xffffff; - si.si_addr = (void __user *) regs->iaoq[0]; - force_sig_info(si.si_signo, &si, current); + force_sig_fault(signalcode >> 24, signalcode & 0xffffff, + (void __user *) regs->iaoq[0], current); return -1; } -- cgit