[PATCH] irq-devres: fix failure path of devm_request_irq()

devres should be deallocated with devres_free() not kfree().  This bug
corrupts slab on IRQ request failure.  Fix it.

Signed-off-by: Tejun Heo <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

kernel/irq/devres.c

@@ -54,7 +54,7 @@ int devm_request_irq(struct device *dev, unsigned int irq,
 
 	rc = request_irq(irq, handler, irqflags, devname, dev_id);
 	if (rc) {
-		kfree(dr);
+		devres_free(dr);
 		return rc;
 	}