[PATCH] aoe: Use kmemdup rather than duplicating its implementation

From: Thomas Meyer
Date: Tue Nov 22 2011 - 06:43:39 EST


The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
---

diff -u -p a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
--- a/drivers/block/aoe/aoechr.c 2011-11-07 19:39:05.287793252 +0100
+++ b/drivers/block/aoe/aoechr.c 2011-11-08 10:37:35.225430670 +0100
@@ -134,13 +134,12 @@ bail: spin_unlock_irqrestore(&emsgs_loc
return;
}

- mp = kmalloc(n, GFP_ATOMIC);
+ mp = kmemdup(msg, n, GFP_ATOMIC);
if (mp == NULL) {
printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
goto bail;
}

- memcpy(mp, msg, n);
em->msg = mp;
em->flags |= EMFL_VALID;
em->len = n;
--
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