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Subject[PATCH] ecryptfs: Use kmemdup rather than duplicating its implementation
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Use kmemdup rather than duplicating its implementation

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/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
--- a/fs/ecryptfs/messaging.c 2011-11-07 19:38:22.340474214 +0100
+++ b/fs/ecryptfs/messaging.c 2011-11-08 10:34:54.896614796 +0100
@@ -350,14 +350,13 @@ int ecryptfs_process_response(struct ecr
goto unlock;
}
msg_size = (sizeof(*msg) + msg->data_len);
- msg_ctx->msg = kmalloc(msg_size, GFP_KERNEL);
+ msg_ctx->msg = kmemdup(msg, msg_size, GFP_KERNEL);
if (!msg_ctx->msg) {
rc = -ENOMEM;
printk(KERN_ERR "%s: Failed to allocate [%zd] bytes of "
"GFP_KERNEL memory\n", __func__, msg_size);
goto unlock;
}
- memcpy(msg_ctx->msg, msg, msg_size);
msg_ctx->state = ECRYPTFS_MSG_CTX_STATE_DONE;
rc = 0;
wake_up:



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