On Thu, Mar 21, 2019 at 02:26:02PM +0100, Christian Gromm wrote: > +static ssize_t mdev_link_direction_store(struct config_item *item, > + const char *page, size_t count) > +{ > + struct mdev_link *mdev_link = to_mdev_link(item); > + char *buf = (char *)page; > + > + if (strcmp(buf, "dir_rx\n") && strcmp(buf, "rx\n") && > + strcmp(buf, "dir_tx\n") && strcmp(buf, "tx\n")) Please use sysfs_streq() here instead of strcmp(). It's ugly to require that the input has a \n char. Same for everything. regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel