[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 <htejun@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c
index 85a430d..d8ee241 100644 (file)
--- a/kernel/irq/devres.c
+++ b/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;
        }