platform/x86: intel_pmc_core: fix bound check in pmc_core_mphy_pg_show()

Check bounds before accessing map[] array.

Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 5a0a25e9ccc916022df86684b2e9f73f562d4463..338ea5222555a2300d38e8cdf4082fedcea6d3ff 100644 (file)
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -795,7 +795,7 @@ static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused)
        msleep(10);
        val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
 
-       for (index = 0; map[index].name && index < 8; index++) {
+       for (index = 0; index < 8 && map[index].name; index++) {
                seq_printf(s, "%-32s\tState: %s\n",
                           map[index].name,
                           map[index].bit_mask & val_low ? "Not power gated" :