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Message-ID: <4DC7F4AB.90607@gmail.com> Date: Mon, 09 May 2011 16:05:31 +0200 From: Vladimir Motyka <vladimir.motyka@...il.com> To: cjb@...top.org CC: kernel-janitors@...r.kernel.org, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] drivers/mmc/card/block.c: fix potential null dereference 'idata' When allocation of idata fails there was a null dereferece. Signed-off-by: Vladimir Motyka <vladimir.motyka@...il.com> --- diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 407836d..3dec493 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -266,10 +266,10 @@ static struct mmc_blk_ioc_data *mmc_blk_ioctl_copy_from_user( return idata; copy_err: - kfree(idata->buf); + if(idata) + kfree(idata->buf); kfree(idata); return ERR_PTR(err); - } static int mmc_blk_ioctl_cmd(struct block_device *bdev, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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