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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2019-02-05 01:38:41 +0100
committerTom Rini <trini@konsulko.com>2019-02-19 08:55:43 -0500
commitc7cd4afb923bd54f18bee71993127aca550f2737 (patch)
treeed8bff57efdee147344cf51a879e11fe9edda697
parentb78a9e2212d4d15fd16af41ae33d05a5c33954de (diff)
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 <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
-rw-r--r--lib/tpm-v1.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/tpm-v1.c b/lib/tpm-v1.c
index 3e89f84544..b4498e6afc 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,