diff options
| author |   jsg <jsg@openbsd.org> | 2020-06-22 13:38:47 +0000 |
|---|---|---|
| committer | jsg <jsg@openbsd.org> | 2020-06-22 13:38:47 +0000 |
| commit | bd72221a760695593d24a2501200040ca67610df (patch) | |
| tree | 1219f3b21a749526e62186bdc493995b7a033d88 | |
| parent | change "East Tupelo" reference to just "Tupelo"; (diff) | |
| download | wireguard-openbsd-bd72221a760695593d24a2501200040ca67610df.tar.xz wireguard-openbsd-bd72221a760695593d24a2501200040ca67610df.zip | |
don't try to decrement if completion flag is UINT_MAX
| -rw-r--r-- | sys/dev/pci/drm/include/linux/completion.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sys/dev/pci/drm/include/linux/completion.h b/sys/dev/pci/drm/include/linux/completion.h index 0859221262e..f7f883270fc 100644 --- a/sys/dev/pci/drm/include/linux/completion.h +++ b/sys/dev/pci/drm/include/linux/completion.h @@ -1,4 +1,4 @@ -/* $OpenBSD: completion.h,v 1.7 2020/06/22 05:19:26 jsg Exp $ */ +/* $OpenBSD: completion.h,v 1.8 2020/06/22 13:38:47 jsg Exp $ */ /* * Copyright (c) 2015, 2018 Mark Kettenis * @@ -57,7 +57,8 @@ wait_for_completion_timeout(struct completion *x, u_long timo) return 0; } } - x->done--; + if (x->done != UINT_MAX) + x->done--; mtx_leave(&x->wait.lock); return 1; @@ -72,7 +73,8 @@ wait_for_completion(struct completion *x) while (x->done == 0) { msleep_nsec(x, &x->wait.lock, 0, "wfcom", INFSLP); } - x->done--; + if (x->done != UINT_MAX) + x->done--; mtx_leave(&x->wait.lock); } @@ -93,7 +95,8 @@ wait_for_completion_interruptible(struct completion *x) return -ERESTARTSYS; } } - x->done--; + if (x->done != UINT_MAX) + x->done--; mtx_leave(&x->wait.lock); return 0; @@ -116,7 +119,8 @@ wait_for_completion_interruptible_timeout(struct completion *x, u_long timo) return -ERESTARTSYS; } } - x->done--; + if (x->done != UINT_MAX) + x->done--; mtx_leave(&x->wait.lock); return 1; @@ -149,7 +153,8 @@ try_wait_for_completion(struct completion *x) mtx_leave(&x->wait.lock); return false; } - x->done--; + if (x->done != UINT_MAX) + x->done--; mtx_leave(&x->wait.lock); return true; } |