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authorDavid S. Miller <davem@davemloft.net>2008-11-06 22:43:03 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-06 22:43:03 -0800
commit9eeda9abd1faf489f3df9a1f557975f4c8650363 (patch)
tree3e0a58e25b776cfbee193195460324dccb1886c7 /drivers/ieee1394/raw1394.c
parent61c9eaf90081cbe6dc4f389e0056bff76eca19ec (diff)
parent4bab0ea1d42dd1927af9df6fbf0003fc00617c50 (diff)
downloadop-kernel-dev-9eeda9abd1faf489f3df9a1f557975f4c8650363.zip
op-kernel-dev-9eeda9abd1faf489f3df9a1f557975f4c8650363.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/wireless/ath5k/base.c net/8021q/vlan_core.c
Diffstat (limited to 'drivers/ieee1394/raw1394.c')
-rw-r--r--drivers/ieee1394/raw1394.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index 9f19ac4..bf7e761 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2268,7 +2268,8 @@ static ssize_t raw1394_write(struct file *file, const char __user * buffer,
return -EFAULT;
}
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
switch (fi->state) {
case opened:
@@ -2548,7 +2549,8 @@ static int raw1394_mmap(struct file *file, struct vm_area_struct *vma)
struct file_info *fi = file->private_data;
int ret;
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
if (fi->iso_state == RAW1394_ISO_INACTIVE)
ret = -EINVAL;
@@ -2669,7 +2671,8 @@ static long raw1394_ioctl(struct file *file, unsigned int cmd,
break;
}
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
switch (fi->iso_state) {
case RAW1394_ISO_INACTIVE:
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