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platform/chrome: cros_ec_lpc: Use DEFINE_MUTEX() for mutex lock

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mutex lock can be initialized automatically with DEFINE_MUTEX()
rather than explicitly calling mutex_init().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20210409095138.2293869-1-yebin10@huawei.com
This commit is contained in:
Ye Bin 2021-04-09 17:51:38 +08:00 committed by Enric Balletbo i Serra
parent 4423ee65f7
commit d61b3f9b91
1 changed files with 1 additions and 2 deletions
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3
drivers/platform/chrome/cros_ec_lpc_mec.c
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@ -14,7 +14,7 @@
* This mutex must be held while accessing the EMI unit. We can't rely on the * 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. * 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; 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) void cros_ec_lpc_mec_init(unsigned int base, unsigned int end)
{ {
mutex_init(&io_mutex);
mec_emi_base = base; mec_emi_base = base;
mec_emi_end = end; mec_emi_end = end;
} }