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path: root/arch/um/drivers/mcast_user.c
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2005-11-13[PATCH] uml: fix mcast network driver error handlingPaolo 'Blaisorblade' Giarrusso
printk clears the host errno (I verified this in debugging and it's reasonable enough, given that it ends via a write call on some fd, especially since printk() goes on /dev/tty0 which is often the host stdout). So save errno earlier. There's no reason to change the printk calls to use -err rather than errno - the assignment can't clear errno. And in the first failure path, we used to return 0 too (and this time more clearly), which is totally wrong. 0 is a success fd, which is then registered and gives a "registering fd twice" warning. Finally, fix up some whitespace. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-17[PATCH] uml: preserve errno in error pathsJeff Dike
The poster child for this patch is the third tuntap_user hunk. When an ioctl fails, it properly closes the opened file descriptor and returns. However, the close resets errno to 0, and the 'return errno' that follows returns 0 rather than the value that ioctl set. This caused the caller to believe that the device open succeeded and had opened file descriptor 0, which caused no end of interesting behavior. The rest of this patch is a pass through the UML sources looking for places where errno could be reset before being passed back out. A common culprit is printk, which could call write, being called before errno is returned. In some cases, where the code ends up being much smaller, I just deleted the printk. There was another case where a caller of run_helper looked at errno after a failure, rather than the return value of run_helper, which was the errno value that it wanted. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-17[PATCH] uml: Remove a useless includeJeff Dike
linux/inet.h isn't needed, and on my system, is empty. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-20[PATCH] uml: multicast driver cleanupJeff Dike
Byte-swapping of the port and IP address passed in to the multicast driver by the user used to happen in different places, which was a bug in itself. The port also was swapped before being printk-ed, which led to a misleading message. This patch moves the port swapping to the same place as the IP address swapping. It also cleans up the error paths of mcast_open. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!