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The loop itself is a fixed-count busy-wait with no side effects; remove the unused variable and keep the empty loop body. Signed-off-by: Eduard Zateev --- drivers/staging/sm750fb/ddk750_swi2c.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/staging/sm750fb/ddk750_swi2c.c b/drivers/staging/sm750fb/ddk750_swi2c.c index e63f3b00ec4c..55623ad35be2 100644 --- a/drivers/staging/sm750fb/ddk750_swi2c.c +++ b/drivers/staging/sm750fb/ddk750_swi2c.c @@ -92,12 +92,10 @@ static void sw_i2c_wait(void) * it's more reliable than counter loop .. * write 0x61 to 0x3ce and read from 0x3cf */ - int i, tmp; + int i; - for (i = 0; i < 600; i++) { - tmp = i; - tmp += i; - } + for (i = 0; i < 600; i++) + ; } /* -- 2.55.0