From f78ec6b2f32efad1fc6b2196e966dcec8122d689 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 12 Aug 2010 09:58:27 +0200 Subject: [PATCH] mtd/m25p80: fix test for end of loop "plat_id" is always non-NULL here. There is a zero element on the end of the m25p_ids[] array and if we hit the end of the loop then plat_id points to that. This would lead to a NULL pointer dereference later on in the function. Signed-off-by: Dan Carpenter Acked-by: Anton Vorontsov Signed-off-by: David Woodhouse --- drivers/mtd/devices/m25p80.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 83c90867240f..6f512b5c117b 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -793,7 +793,7 @@ static int __devinit m25p_probe(struct spi_device *spi) break; } - if (plat_id) + if (i < ARRAY_SIZE(m25p_ids) - 1) id = plat_id; else dev_warn(&spi->dev, "unrecognized id %s\n", data->type); -- GitLab