| commit | 9ac625a3986034d79938baf9604210280fae35fa | |
| author | Jeff Dike <jdike@addtoit.com> | |
| Thu, 15 Nov 2007 01:00:23 +0000 (14 17:00 -0800) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Thu, 15 Nov 2007 02:45:43 +0000 (14 18:45 -0800) | ||
| tree | 66c45bdd302027e77dec5df93ffa2e81543d6ca2 | treesnapshot (tar.gz zip) |
| parent | 7c06a8dc64a2d1884bd19b4c6353d9267ae4e3e1 | commitdiff |
uml: fix spurious IRQ testing
The spurious IRQ testing in request_irq is mishandled in um_request_irq, which
sets the incoming file descriptors non-blocking only after request_irq
succeeds. This results in the spurious irq calling read on a blocking
descriptor, and a hang.
Fixed by reversing the O_NONBLOCK setting and the request_irq call.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The spurious IRQ testing in request_irq is mishandled in um_request_irq, which
sets the incoming file descriptors non-blocking only after request_irq
succeeds. This results in the spurious irq calling read on a blocking
descriptor, and a hang.
Fixed by reversing the O_NONBLOCK setting and the request_irq call.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| arch/um/kernel/irq.c | diffblobblamehistory |