drivers: Fix more compiler warnings

Fix uninitialized variable warnings that were not previously caught by
old compiler.

Change-Id: I5014a235da41d32a3a1ae234286270ec9af875fc
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
diff --git a/drivers/leds/leds-qpnp-flash-v2.c b/drivers/leds/leds-qpnp-flash-v2.c
index 08809a9..01e553c 100644
--- a/drivers/leds/leds-qpnp-flash-v2.c
+++ b/drivers/leds/leds-qpnp-flash-v2.c
@@ -677,7 +677,8 @@
 #define VIN_FLASH_MIN_UV	3300000LL
 static int qpnp_flash_led_calc_max_current(struct qpnp_flash_led *led)
 {
-	int ocv_uv, rbatt_uohm, ibat_now, voltage_hdrm_mv, rc;
+	int ocv_uv, ibat_now, voltage_hdrm_mv, rc;
+	int rbatt_uohm = 0;
 	int64_t ibat_flash_ua, avail_flash_ua, avail_flash_power_fw;
 	int64_t ibat_safe_ua, vin_flash_uv, vph_flash_uv, vph_flash_vdip;