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Merge 6a098c51d1 ("parisc: Fix double SIGFPE crash") into android-mainline

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Steps on the way to 6.6.90

Change-Id: I93af074f10d333780dfc0fd78ff38ed2733bf1ab
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2025-05-21 10:00:26 +00:00
parent 7adf4c4597 6a098c51d1
commit 3dfac7bc40
1 changed files with 13 additions and 3 deletions
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16
arch/parisc/math-emu/driver.c
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@@ -103,9 +103,19 @@ handle_fpe(struct pt_regs *regs)
memcpy(regs->fr, frcopy, sizeof regs->fr);
if (signalcode != 0) {
force_sig_fault(signalcode >> 24, signalcode & 0xffffff,
(void __user *) regs->iaoq[0]);
return -1;
int sig = signalcode >> 24;
if (sig == SIGFPE) {
/*
* Clear floating point trap bit to avoid trapping
* again on the first floating-point instruction in
* the userspace signal handler.
*/
regs->fr[0] &= ~(1ULL << 38);
}
force_sig_fault(sig, signalcode & 0xffffff,
(void __user *) regs->iaoq[0]);
return -1;
}
return signalcode ? -1 : 0;