staging: spectra: don't read past array in Conv_Spare_Data_Log2Phy_Format()

It should decrement or we read past the array

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/spectra/lld_nand.c b/drivers/staging/spectra/lld_nand.c
index 2263d3e..0be7adc 100644 (file)
--- a/drivers/staging/spectra/lld_nand.c
+++ b/drivers/staging/spectra/lld_nand.c
@@ -1400,7 +1400,7 @@ void Conv_Spare_Data_Log2Phy_Format(u8 *data)
        const u32 PageSpareSize  = DeviceInfo.wPageSpareSize;
 
        if (enable_ecc) {
-               for (i = spareFlagBytes - 1; i >= 0; i++)
+               for (i = spareFlagBytes - 1; i >= 0; i--)
                        data[PageSpareSize - spareFlagBytes + i] = data[i];
        }
 }