PNP: isapnp: remove set but not used variable 'checksum'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/pnp/isapnp/core.c: In function ‘isapnp_build_device_list’:
drivers/pnp/isapnp/core.c:777:27: warning: variable ‘checksum’ set
but not used [-Wunused-but-set-variable]

It is never used, and so can be removed.

Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
index 179b737..e39d49b 100644 (file)
--- a/drivers/pnp/isapnp/core.c
+++ b/drivers/pnp/isapnp/core.c
@@ -774,7 +774,7 @@ static unsigned char __init isapnp_checksum(unsigned char *data)
 static int __init isapnp_build_device_list(void)
 {
        int csn;
-       unsigned char header[9], checksum;
+       unsigned char header[9];
        struct pnp_card *card;
        u32 eisa_id;
        char id[8];
@@ -784,7 +784,6 @@ static int __init isapnp_build_device_list(void)
        for (csn = 1; csn <= isapnp_csn_count; csn++) {
                isapnp_wake(csn);
                isapnp_peek(header, 9);
-               checksum = isapnp_checksum(header);
                eisa_id = header[0] | header[1] << 8 |
                          header[2] << 16 | header[3] << 24;
                pnp_eisa_id_to_string(eisa_id, id);