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-rw-r--r--arch/um/kernel/irq_user.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/um/kernel/irq_user.c b/arch/um/kernel/irq_user.c
index 6d6f9484b884..b3074cbaa479 100644
--- a/arch/um/kernel/irq_user.c
+++ b/arch/um/kernel/irq_user.c
@@ -236,9 +236,15 @@ static void free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg)
236 (*prev)->fd, pollfds[i].fd); 236 (*prev)->fd, pollfds[i].fd);
237 goto out; 237 goto out;
238 } 238 }
239 memcpy(&pollfds[i], &pollfds[i + 1], 239
240 (pollfds_num - i - 1) * sizeof(pollfds[0]));
241 pollfds_num--; 240 pollfds_num--;
241
242 /* This moves the *whole* array after pollfds[i] (though
243 * it doesn't spot as such)! */
244
245 memmove(&pollfds[i], &pollfds[i + 1],
246 (pollfds_num - i) * sizeof(pollfds[0]));
247
242 if(last_irq_ptr == &old_fd->next) 248 if(last_irq_ptr == &old_fd->next)
243 last_irq_ptr = prev; 249 last_irq_ptr = prev;
244 *prev = (*prev)->next; 250 *prev = (*prev)->next;