linux-kernel - [PATCH] x86, microcode, AMD: Cocci spatch "memdup.spatch"

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Date:	Sat, 01 Jun 2013 11:42:11 +0200
From:	Thomas Meyer <thomas@...3r.de>
To:	herrmann.der.user@...glemail.com, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	amd64-microcode@...64.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86, microcode, AMD: Cocci spatch "memdup.spatch"


Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff -u -p a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -345,7 +345,7 @@ static int verify_and_add_patch(unsigned
 		return -EINVAL;
 	}
 
-	patch->data = kzalloc(patch_size, GFP_KERNEL);
+	patch->data = kmemdup(fw + SECTION_HDR_SIZE, patch_size, GFP_KERNEL);
 	if (!patch->data) {
 		pr_err("Patch data allocation failure.\n");
 		kfree(patch);
@@ -353,7 +353,6 @@ static int verify_and_add_patch(unsigned
 	}
 
 	/* All looks ok, copy patch... */
-	memcpy(patch->data, fw + SECTION_HDR_SIZE, patch_size);
 	INIT_LIST_HEAD(&patch->plist);
 	patch->patch_id  = mc_hdr->patch_id;
 	patch->equiv_cpu = proc_id;


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