serial: isicomm: handle running out of slots
This patch makes it return -ENODEV if we run out of empty slots in the
probe function. It's unlikely to happen, but it makes the static
checkers happy.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index c1ab303..98310e1 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -1573,11 +1573,16 @@
dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device);
/* allot the first empty slot in the array */
- for (index = 0; index < BOARD_COUNT; index++)
+ for (index = 0; index < BOARD_COUNT; index++) {
if (isi_card[index].base == 0) {
board = &isi_card[index];
break;
}
+ }
+ if (index == BOARD_COUNT) {
+ retval = -ENODEV;
+ goto err_disable;
+ }
board->index = index;
board->base = pci_resource_start(pdev, 3);
@@ -1624,6 +1629,7 @@
errdec:
board->base = 0;
card_count--;
+err_disable:
pci_disable_device(pdev);
err:
return retval;