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-rw-r--r--sys/kern/kern_conf.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c
index 8762352a0f9f..cf47c7c624b7 100644
--- a/sys/kern/kern_conf.c
+++ b/sys/kern/kern_conf.c
@@ -443,10 +443,14 @@ umajor(dev_t dev)
static void
fini_cdevsw(struct cdevsw *devsw)
{
+ struct cdevsw *gt;
- if (devsw->d_gianttrick != NULL)
- free(devsw->d_gianttrick, M_DEVT);
- devsw->d_gianttrick = NULL;
+ if (devsw->d_gianttrick != NULL) {
+ gt = devsw->d_gianttrick;
+ memcpy(devsw, gt, sizeof *devsw);
+ free(gt, M_DEVT);
+ devsw->d_gianttrick = NULL;
+ }
devsw->d_flags &= ~D_INIT;
}