Check for length > 0 because otherwise len may become smaller than
0 in which case the loop never ends.
Reported-by: Alexander Shiyan <eagle.alexander923@xxxxxxxxx>
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/mtd/nand/nand_omap_gpmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/nand_omap_gpmc.c b/drivers/mtd/nand/nand_omap_gpmc.c
index db1ca88791..0f3ffa1c0e 100644
--- a/drivers/mtd/nand/nand_omap_gpmc.c
+++ b/drivers/mtd/nand/nand_omap_gpmc.c
@@ -636,7 +636,7 @@ static void omap_write_buf_pref(struct nand_chip *nand_chip,
gpmc_prefetch_enable(info->gpmc_cs,
PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x1);
- while (len) {
+ while (len > 0) {
w_count = readl(info->gpmc_base + GPMC_PREFETCH_STATUS);
w_count = GPMC_PREFETCH_STATUS_FIFO_CNT(w_count);
w_count = w_count >> 2;
--
2.20.1
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