Dear Michal and Felipe, According to my last conversation with Michal[1] I have prepared patch which adjust error returning policy in function FS. Previously when FunctionFS was unable to find device configured via ConfigFS returned -ENODEV. This error looks quite suitable there but by default kernel mount syscall returns -ENODEV when given fs type has not been registered in kernel. This causes misleading error when making a typo in device name: $ mount sbd -t functionfs /tmp/sdb mount: unknown filesystem type 'functionfs' This patch adjust FFS error policy to be similar to other FS. Now when ffs is unable to find a device -ENOENT is returned. This gives nice and readable error while mounting: $ mount sbd -t functionfs /tmp/sdb mount: special device sbd does not exist and $ mount sdb -t functiofs /tmp/sdb mount: unknown filesystem type 'functiofs' Footnotes: 1 - http://www.spinics.net/lists/linux-usb/msg108052.html -- Best regards, Krzysztof Opasiak Samsung R&D Institute Poland Samsung Electronics Krzysztof Opasiak (1): usb: gadget: FunctionFS: Return -ENOENT instead of -ENODEV when device not found. drivers/usb/gadget/f_fs.c | 4 ++-- drivers/usb/gadget/g_ffs.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
