pmic_i2c: Return error in case of invalid pmic_i2c_tx_num

Return error in case of invalid pmic_i2c_tx_num.

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Acked-by: Lukasz Majewski <[email protected]>
Acked-by: Stefano Babic <[email protected]>

diff --git a/drivers/misc/pmic_i2c.c b/drivers/misc/pmic_i2c.c
index ad55d6447e37a23f9917eb864ae7d17bde56713a..95a3365b9fc72a481ded1937d4293b1fb6cb4042 100644 (file)
--- a/drivers/misc/pmic_i2c.c
+++ b/drivers/misc/pmic_i2c.c
@@ -47,6 +47,9 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
        case 1:
                buf[0] = val & 0xff;
                break;
+       default:
+               printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num);
+               return -1;
        }
 
        if (i2c_write(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
@@ -73,6 +76,9 @@ int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
        case 1:
                ret_val = buf[0];
                break;
+       default:
+               printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num);
+               return -1;
        }
        memcpy(val, &ret_val, sizeof(ret_val));