Hi, As I understand it, sizeof(*data) is the same as sizeof(struct mcp23s08_driver_data). There should be no pointer dereference here, so I would say it isn't an issue. That notation is quite confusing though. Note that data is surrounded by parenthesis, at least in Linux 3.18, in gpio-mcp23s08.c Regards, Hubert Le 22/01/2015 19:19, Daniel Hilst Selli a écrit : > I came across this code: > > struct mcp23s08_driver_data *data; > ... > data = kzalloc(sizeof *data + chips * sizeof(struct mcp23s08), > GFP_KERNEL); > > > Since data wasn't initialized when `sizeof *data' is called, wasn't this a non-initialized pointer dereference? > > Cheers > -- > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
