Commit-ID: 9cc6f743c7724eb9abaf27904194c169db85dd31 Gitweb: http://git.kernel.org/tip/9cc6f743c7724eb9abaf27904194c169db85dd31 Author: Andrzej Hajda <[email protected]> AuthorDate: Tue, 16 Feb 2016 09:43:20 +0100 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 17 Feb 2016 08:46:08 +0100
x86/microcode: Use kmemdup() rather than duplicating its implementation The patch was generated using fixed coccinelle semantic patch scripts/coccinelle/api/memdup.cocci. Signed-off-by: Andrzej Hajda <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Marek Szyprowski <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/cpu/microcode/amd.c | 4 +--- arch/x86/kernel/cpu/microcode/intel.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index f66cbfe..e397fc1 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -788,15 +788,13 @@ static int verify_and_add_patch(u8 family, u8 *fw, unsigned int leftover) 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); return -EINVAL; } - /* 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; diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index cb397947..cbb3cf0 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -210,13 +210,11 @@ save_microcode(struct mc_saved_data *mcs, mc_hdr = &mc->hdr; size = get_totalsize(mc_hdr); - saved_ptr[i] = kmalloc(size, GFP_KERNEL); + saved_ptr[i] = kmemdup(mc, size, GFP_KERNEL); if (!saved_ptr[i]) { ret = -ENOMEM; goto err; } - - memcpy(saved_ptr[i], mc, size); } /*
