lkml.org 
[lkml]   [2014]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 5/9] nvme: Fix invalid call to irq_set_affinity_hint()
Date
In case MSI-X and MSI initialization failed the function
irq_set_affinity_hint() is called with uninitialized value
in dev->entry[0].vector. This update fixes the issue.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
---
drivers/block/nvme-core.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 26d03fa..e292450 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1790,15 +1790,15 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
vecs = 32;
for (;;) {
result = pci_enable_msi_block(pdev, vecs);
- if (result == 0) {
- for (i = 0; i < vecs; i++)
- dev->entry[i].vector = i + pdev->irq;
- break;
+ if (result > 0) {
+ vecs = result;
+ continue;
} else if (result < 0) {
vecs = 1;
- break;
}
- vecs = result;
+ for (i = 0; i < vecs; i++)
+ dev->entry[i].vector = i + pdev->irq;
+ break;
}
}

--
1.7.7.6


\
 
 \ /
  Last update: 2014-01-17 18:01    [W:0.226 / U:0.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site