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| author | Alexandru Ardelean <[email protected]> | 2019-11-05 07:32:12 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2019-11-14 03:49:48 +0000 |
| commit | 3ec1bd7693ee5bba69eaa1a2b74b14d37971769e (patch) | |
| tree | 4c1b8f680f608bd641b652e18720ddd087864217 /net/unix/af_unix.c | |
| parent | binder: Handle start==NULL in binder_update_page_range() (diff) | |
| download | kernel-3ec1bd7693ee5bba69eaa1a2b74b14d37971769e.tar.gz kernel-3ec1bd7693ee5bba69eaa1a2b74b14d37971769e.zip | |
uio: fix irq init with dt support & irq not defined
This change also does a bit of a unification for the IRQ init code.
But the actual problem is that UIO_IRQ_NONE == 0, so for the DT case where
UIO_IRQ_NONE gets assigned to `uioinfo->irq`, a 2nd initialization will get
triggered (for the IRQ) and this one will exit via `goto bad1`.
As far as things seem to go, the only case where UIO_IRQ_NONE seems valid,
is when using a device-tree. The driver has some legacy support for old
platform_data structures. It looks like, for platform_data a non-existent
IRQ is an invalid case (or was considered an invalid case).
Which is why -ENXIO is treated only when a DT is used.
Signed-off-by: Dragos Bogdan <[email protected]>
Signed-off-by: Alexandru Ardelean <[email protected]>
Acked-by: Damian Hobson-Garcia <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions