mmc: pwrseq_simple: fix error path in mmc_pwrseq_simple_alloc.

From: NeilBrown <[email protected]>

The current error-path code (when gpiod_get_index() reports an error) can never free pwrseq->reset_gpios[0], but might try to tree pwrseq->reset_gpios[-1], which has unfortunate consequences.

Signed-off-by NeilBrown <[email protected]>

Fixes 934f1f48330ed695927a51fa068dc5d673f2da19

From: NeilBrown <[email protected]>

The current error-path code (when gpiod_get_index() reports an error) can never free pwrseq->reset_gpios[0], but might try to tree pwrseq->reset_gpios[-1], which has unfortunate consequences.

Signed-off-by NeilBrown <[email protected]>

Fixes 934f1f48330ed695927a51fa068dc5d673f2da19

drivers/mmc/core/pwrseq_simple.c +1 -1

index e9f1d8d84613..c53f14a7ce54 100644
@@ -124,7 +124,7 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
                    PTR_ERR(pwrseq->reset_gpios[i]) != -ENOSYS) {
                        ret = PTR_ERR(pwrseq->reset_gpios[i]);
 
-                       while (--i)
+                       while (i--)
                                gpiod_put(pwrseq->reset_gpios[i]);
 
                        goto clk_put;