diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-11-20 09:02:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-20 09:02:39 +0100 |
| commit | fbc2a06056c9aa3cb8c44bf1cfeb1d260e229e5c (patch) | |
| tree | feb2a1c13ad3dff5a8c7ab3c0265e8eca7a0c5a3 /drivers/ieee1394/raw1394.c | |
| parent | a3d732f93785da17e0137210deadb4616f5536fc (diff) | |
| parent | ee2f6cc7f9ea2542ad46070ed62ba7aa04d08871 (diff) | |
Merge branch 'linus' into x86/uv
Diffstat (limited to 'drivers/ieee1394/raw1394.c')
| -rw-r--r-- | drivers/ieee1394/raw1394.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index 9f19ac49210..bf7e761c12b 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: |