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Date: Tue, 16 Jun 2015 19:07:07 -0700 From: Brian Norris <computersforpeace@...il.com> To: Richard Weinberger <richard@....at> Cc: dwmw2@...radead.org, maximlevitsky@...il.com, linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/6] mtd: nandsim: Fix kasprintf() usage On Mon, Jun 01, 2015 at 11:10:50PM +0200, Richard Weinberger wrote: > kasprintf() used in get_partition_name() does a dynamic > memory allocation and can fail. We have to handle that case. > > Signed-off-by: Richard Weinberger <richard@....at> > --- > drivers/mtd/nand/nandsim.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c > index f232427..52c0c1a 100644 > --- a/drivers/mtd/nand/nandsim.c > +++ b/drivers/mtd/nand/nandsim.c > @@ -743,6 +743,11 @@ static int init_nandsim(struct mtd_info *mtd) > goto error; > } > ns->partitions[i].name = get_partition_name(i); > + if (!ns->partitions[i].name) { > + NS_ERR("unable to allocate memory.\n"); Probably don't really need the allocation failure messages. But this matches the current style, so we can just rip the messages out at another time. > + ret = -ENOMEM; > + goto error; > + } > ns->partitions[i].offset = next_offset; > ns->partitions[i].size = part_sz; > next_offset += ns->partitions[i].size; > @@ -756,6 +761,11 @@ static int init_nandsim(struct mtd_info *mtd) > goto error; > } > ns->partitions[i].name = get_partition_name(i); > + if (!ns->partitions[i].name) { > + NS_ERR("unable to allocate memory.\n"); Same here. > + ret = -ENOMEM; > + goto error; > + } > ns->partitions[i].offset = next_offset; > ns->partitions[i].size = remains; > ns->nbparts += 1; Brian -- 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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