Linus Torvalds wrote: > > On Mon, 11 Dec 2006, Chuck Ebbert wrote: >> Prevent oops when an app tries to create a pipe while pipefs >> is not mounted. > > Have you actually seen this, or is this just from looking at code? > > Quite frankly, if "pipe_mnt" is ever NULL, we're dead for lots of other > reasons. > > In fact, pipe_mnt can't be NULL. The way it is initialized is: > > pipe_mnt = kern_mount(&pipe_fs_type); > > and pipe_mnt doesn't even return NULL - it returns an error pointer, so if > "kern_mount()" were to have failed, pipe_mnt will be some random invalid > pointer that could only be tested with IS_ERR(), not by comparing against > NULL.
http://marc.theaimsgroup.com/?t=116510390600001&r=1&w=2 /mjt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
