From c7cd4afb923bd54f18bee71993127aca550f2737 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Tue, 5 Feb 2019 01:38:41 +0100 Subject: [PATCH] tpm: simplify: tpm_set_global_lock() When in pack_byte_string() memcpy() is called for size 0 the source buffer address has no relevance. So we can use NULL here. Signed-off-by: Heinrich Schuchardt Reviewed-by: Simon Glass --- lib/tpm-v1.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/lib/tpm-v1.c b/lib/tpm-v1.c index 3e89f84..b4498e6 100644 --- a/lib/tpm-v1.c +++ b/lib/tpm-v1.c @@ -211,9 +211,7 @@ u32 tpm_nv_write_value(struct udevice *dev, u32 index, const void *data, uint32_t tpm_set_global_lock(struct udevice *dev) { - u32 x; - - return tpm_nv_write_value(dev, TPM_NV_INDEX_0, (uint8_t *)&x, 0); + return tpm_nv_write_value(dev, TPM_NV_INDEX_0, NULL, 0); } u32 tpm_extend(struct udevice *dev, u32 index, const void *in_digest, -- 2.7.4