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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-02-15 20:27:02 +0300
committerEric Van Hensbergen <ericvh@gmail.com>2010-03-06 00:04:41 +0300
commitc1a7c2262035e83a8f70ebe1328b3451702cf51b (patch)
treee5bdb780478c839c20099cc3b5f6ecce7f88c0ea /net/9p/trans_virtio.c
parent37c1209d413242d9560e343c040777049a8dd869 (diff)
downloadlinux-c1a7c2262035e83a8f70ebe1328b3451702cf51b.tar.xz
net/9p: Handle mount errors correctly.
With this patch we have # mount -t 9p -o trans=virtio virtio2 /mnt/ # mount -t 9p -o trans=virtio virtio2 /mnt/ mount: virtio2 already mounted or /mnt/ busy mount: according to mtab, virtio2 is already mounted on /mnt # mount -t 9p -o trans=virtio virtio3 /mnt/ -o debug=0xfff mount: special device virtio3 does not exist Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'net/9p/trans_virtio.c')
-rw-r--r--net/9p/trans_virtio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 05918d3cb40d..0aaed4819379 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -279,6 +279,7 @@ static int
p9_virtio_create(struct p9_client *client, const char *devname, char *args)
{
struct virtio_chan *chan;
+ int ret = -ENOENT;
int found = 0;
mutex_lock(&virtio_9p_lock);
@@ -289,13 +290,14 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
found = 1;
break;
}
+ ret = -EBUSY;
}
}
mutex_unlock(&virtio_9p_lock);
if (!found) {
printk(KERN_ERR "9p: no channels available\n");
- return -ENODEV;
+ return ret;
}
client->trans = (void *)chan;