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authorJiri Kosina <jkosina@suse.cz>2016-06-16 07:53:58 (GMT)
committerJens Axboe <axboe@fb.com>2016-08-04 20:19:16 (GMT)
commitff06db1efb2ad6db06eb5b99b88a0c15a9cc9b0e (patch)
tree9de4ce114a0583d3ceab6cd1795bb520092dc836 /fs
parentc1ece76719205690f4b448460d9b85c130e8021b (diff)
downloadlinux-ff06db1efb2ad6db06eb5b99b88a0c15a9cc9b0e.tar.xz
floppy: fix open(O_ACCMODE) for ioctl-only open
Commit 09954bad4 ("floppy: refactor open() flags handling"), as a side-effect, causes open(/dev/fdX, O_ACCMODE) to fail. It turns out that this is being used setfdprm userspace for ioctl-only open(). Reintroduce back the original behavior wrt !(FMODE_READ|FMODE_WRITE) modes, while still keeping the original O_NDELAY bug fixed. Cc: stable@vger.kernel.org # v4.5+ Reported-by: Wim Osterholt <wim@djo.tudelft.nl> Tested-by: Wim Osterholt <wim@djo.tudelft.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
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