Hello,
while using mdev to create device nodes for the capi subsystem mdev
accidently deletes a previously created node. Assume the following
lines in mdev.conf:
capi 0:0 0660 =capi20
capi([0-9]) 0:0 0660 =capi20.0%1
capi([0-9]*) 0:0 0660 =capi20.%1
After loading the capi module the kernel generate a number of hotplug
events, starting with capi, followed by capi0-capi32. mdev creates
/dev/capi, and renames it to /dev/capi20.
When the event "add tty /class/tty/capi0" comes in, mdev executes
unlink /dev/capi20
mknod /dev/capi20
rename(/dev/capi20,/dev/capi20.20)
and erases the original /dev/capi20 device while doing this.
So to me it looks like mdev should try to do the renaming before
actually creating the device node (or deleting it for a remove hotplug
event). The attached patch against git (head?) tries to fix this. It
is adapted from a patch against 1.14.1 and did not get much testing so
far.
regards,
Jean
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