On 2017-08-26 07:49, Christophe JAILLET wrote: > Check memory allocation failures and return -ENOMEM in such cases, as > already done few lines above for another memory allocation. > > This avoids NULL pointers dereference. > > Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Hi! This is a dup of an older patch [1]. Cheers, peda [1] https://patchwork.kernel.org/patch/9829567/ > --- > drivers/iio/multiplexer/iio-mux.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/iio/multiplexer/iio-mux.c b/drivers/iio/multiplexer/iio-mux.c > index 37ba007f8dca..74831fcd0313 100644 > --- a/drivers/iio/multiplexer/iio-mux.c > +++ b/drivers/iio/multiplexer/iio-mux.c > @@ -285,6 +285,9 @@ static int mux_configure_channel(struct device *dev, struct mux *mux, > child->ext_info_cache = devm_kzalloc(dev, > sizeof(*child->ext_info_cache) * > num_ext_info, GFP_KERNEL); > + if (!child->ext_info_cache) > + return -ENOMEM; > + > for (i = 0; i < num_ext_info; ++i) { > child->ext_info_cache[i].size = -1; > > @@ -309,6 +312,9 @@ static int mux_configure_channel(struct device *dev, struct mux *mux, > > child->ext_info_cache[i].data = devm_kmemdup(dev, page, ret + 1, > GFP_KERNEL); > + if (!child->ext_info_cache[i].data) > + return -ENOMEM; > + > child->ext_info_cache[i].data[ret] = 0; > child->ext_info_cache[i].size = ret; > } > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
