[PATCH] h8 janitor work

o Check request_region result

[PATCH] h8 janitor work
o Check request_region result
fb20b647 · Dave Jones · Linus Torvalds · e7108e9c · fb20b647
Commit fb20b647 authored May 30, 2002 by Dave Jones Committed by Linus Torvalds May 30, 2002
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Showing with 6 additions and 2 deletions

drivers/char/h8.c drivers/char/h8.c +6 -2

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--- a/drivers/char/h8.c
+++ b/drivers/char/h8.c
@@ -299,9 +299,13 @@ static int __init h8_init(void)
        }
        printk(KERN_INFO "H8 at 0x%x IRQ %d\n", h8_base, h8_irq);

-        create_proc_info_entry("driver/h8", 0, NULL, h8_get_info);
+        if (!request_region(h8_base, 8, "h8"))
+	 {
+		free_irq(h8_irq, NULL);
+		return -EIO;
+	 }

-        request_region(h8_base, 8, "h8");
+        create_proc_info_entry("driver/h8", 0, NULL, h8_get_info);

 	h8_alloc_queues();