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path: root/drivers/crypto/ccp/ccp-dev.c
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-rw-r--r--drivers/crypto/ccp/ccp-dev.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c
index a7d110652a74..c6e6171eb6d3 100644
--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -55,6 +55,20 @@ static inline void ccp_del_device(struct ccp_device *ccp)
55} 55}
56 56
57/** 57/**
58 * ccp_present - check if a CCP device is present
59 *
60 * Returns zero if a CCP device is present, -ENODEV otherwise.
61 */
62int ccp_present(void)
63{
64 if (ccp_get_device())
65 return 0;
66
67 return -ENODEV;
68}
69EXPORT_SYMBOL_GPL(ccp_present);
70
71/**
58 * ccp_enqueue_cmd - queue an operation for processing by the CCP 72 * ccp_enqueue_cmd - queue an operation for processing by the CCP
59 * 73 *
60 * @cmd: ccp_cmd struct to be processed 74 * @cmd: ccp_cmd struct to be processed