[U-Boot] [PATCH 1/1] tpm: simplify: tpm_set_global_lock()
Heinrich Schuchardt
xypron.glpk at gmx.de
Tue Feb 5 00:38:41 UTC 2019
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 at gmx.de>
---
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 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,
--
2.20.1
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