diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 9bab07302bbf20dad28b0679be9edd4ae0c059cf..535076eff5f67d701f04ebcee0651d5ebf994e7d 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -83,6 +83,7 @@ static ssize_t proc_bus_pci_read(struct file *file, char __user *buf,
 		buf += 4;
 		pos += 4;
 		cnt -= 4;
+		cond_resched();
 	}
 
 	if (cnt >= 2) {