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authorEric W. Biederman <ebiederm@xmission.com>2018-04-19 19:14:26 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-04-25 10:44:06 -0500
commitccf75290cc646316c3f1ca960ce71941ff72afab (patch)
tree845702b7b311cb119013201ae643f0cbaf6cc003 /arch/parisc/math-emu
parentc2b0e0d33b5573d4cb426e9c3ddbf2aad5e1d8a7 (diff)
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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 <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-parisc@vger.kernel.org Acked-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'arch/parisc/math-emu')
-rw-r--r--arch/parisc/math-emu/driver.c9
1 files changed, 2 insertions, 7 deletions
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;
}