char: hpet: Remove unused variable 'm'

Fixes the following W=1 kernel build warning(s):

 drivers/char/hpet.c: In function ‘hpet_interrupt’:
 drivers/char/hpet.c:159:17: warning: variable ‘m’ set but not used [-Wunused-but-set-variable]

Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Bob Picco <robert.picco@hp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210520121347.3467794-13-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 8b55085..4e5431f 100644 (file)
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -156,12 +156,12 @@ static irqreturn_t hpet_interrupt(int irq, void *data)
         * This has the effect of treating non-periodic like periodic.
         */
        if ((devp->hd_flags & (HPET_IE | HPET_PERIODIC)) == HPET_IE) {
-               unsigned long m, t, mc, base, k;
+               unsigned long t, mc, base, k;
                struct hpet __iomem *hpet = devp->hd_hpet;
                struct hpets *hpetp = devp->hd_hpets;
 
                t = devp->hd_ireqfreq;
-               m = read_counter(&devp->hd_timer->hpet_compare);
+               read_counter(&devp->hd_timer->hpet_compare);
                mc = read_counter(&hpet->hpet_mc);
                /* The time for the next interrupt would logically be t + m,
                 * however, if we are very unlucky and the interrupt is delayed