[PATCH -next] platform/chrome: cros_ec_lpc_mec: use DEFINE_MUTEX (and mutex_init() had been too late)

From: Zheng Yongjun
Date: Wed Dec 23 2020 - 09:12:05 EST


Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
---
drivers/platform/chrome/cros_ec_lpc_mec.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_lpc_mec.c b/drivers/platform/chrome/cros_ec_lpc_mec.c
index 9035b17e8c86..bbc2884f5e2f 100644
--- a/drivers/platform/chrome/cros_ec_lpc_mec.c
+++ b/drivers/platform/chrome/cros_ec_lpc_mec.c
@@ -14,7 +14,7 @@
* This mutex must be held while accessing the EMI unit. We can't rely on the
* EC mutex because memmap data may be accessed without it being held.
*/
-static struct mutex io_mutex;
+static DEFINE_MUTEX(io_mutex);
static u16 mec_emi_base, mec_emi_end;

/**
@@ -142,7 +142,6 @@ EXPORT_SYMBOL(cros_ec_lpc_io_bytes_mec);

void cros_ec_lpc_mec_init(unsigned int base, unsigned int end)
{
- mutex_init(&io_mutex);
mec_emi_base = base;
mec_emi_end = end;
}
--
2.22.0