ARM: pxa/am200epd: fix leak in am200_init_gpio_regs error path

If gpio_request fails when i > 0, gpios[0] is not freed in current
implementation.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

diff --git a/arch/arm/mach-pxa/am200epd.c b/arch/arm/mach-pxa/am200epd.c
index 10964e376009e4ddf2f90fca62b19c76eab32270..4cb069fd9af2e82b8504f032993bd696be6d4c70 100644 (file)
--- a/arch/arm/mach-pxa/am200epd.c
+++ b/arch/arm/mach-pxa/am200epd.c
@@ -128,8 +128,8 @@ static int am200_init_gpio_regs(struct metronomefb_par *par)
        return 0;
 
 err_req_gpio:
-       while (i > 0)
-               gpio_free(gpios[i--]);
+       while (--i >= 0)
+               gpio_free(gpios[i]);
 
        return err;
 }