* [PATCH] ia64: sn: Use kmemdup rather than duplicating its
@ 2011-11-17 22:43 Thomas Meyer
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From: Thomas Meyer @ 2011-11-17 22:43 UTC (permalink / raw)
To: jes, tony.luck, fenghua.yu, linux-altix, linux-ia64, linux-kernel
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---
diff -u -p a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
--- a/arch/ia64/sn/kernel/irq.c 2011-11-07 19:37:22.046225104 +0100
+++ b/arch/ia64/sn/kernel/irq.c 2011-11-08 11:01:33.601378758 +0100
@@ -150,12 +150,11 @@ struct sn_irq_info *sn_retarget_vector(s
* PROM does not support SAL_INTR_REDIRECT, or it failed.
* Revert to old method.
*/
- new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
+ new_irq_info = kmemdup(sn_irq_info, sizeof(struct sn_irq_info),
+ GFP_ATOMIC);
if (new_irq_info = NULL)
return NULL;
- memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
-
/* Free the old PROM new_irq_info structure */
sn_intr_free(local_nasid, local_widget, new_irq_info);
unregister_intr_pda(new_irq_info);
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