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Subject[PATCH 1/3] bsg: fix bsg_poll() to return POLLOUT properly
Date
POLLOUT should be returned only if bd->queued_cmds < bd->max_queue
so that bsg_alloc_command() can proceed.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
---
block/bsg.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/bsg.c b/block/bsg.c
index 0c8b64a16484..c4f49e255751 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -878,7 +878,7 @@ static unsigned int bsg_poll(struct file *file, poll_table *wait)
spin_lock_irq(&bd->lock);
if (!list_empty(&bd->done_list))
mask |= POLLIN | POLLRDNORM;
- if (bd->queued_cmds >= bd->max_queue)
+ if (bd->queued_cmds < bd->max_queue)
mask |= POLLOUT;
spin_unlock_irq(&bd->lock);

--
1.7.5


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