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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 16:14:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 16:14:02 -0700
commit8e9d2089723d08d51e66c5eea49253d76e27941e (patch)
treecf15609d5eeb0c1f3a39231d8ce793d3c8ad0ed0 /drivers/usb/gadget
parentba1eb95cf3cc666769afe42eaa15a3a34ae82f94 (diff)
parent60aa49243d09afc873f082567d2e3c16634ced84 (diff)
Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6
* 'bkl-removal' of git://git.lwn.net/linux-2.6: Rationalize fasync return values Move FASYNC bit handling to f_op->fasync() Use f_lock to protect f_flags Rename struct file->f_ep_lock
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/file_storage.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index d3c2464dee82..5c030b080d4c 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -1711,7 +1711,9 @@ static int do_write(struct fsg_dev *fsg)
curlun->sense_data = SS_WRITE_PROTECTED;
return -EINVAL;
}
+ spin_lock(&curlun->filp->f_lock);
curlun->filp->f_flags &= ~O_SYNC; // Default is not to wait
+ spin_unlock(&curlun->filp->f_lock);
/* Get the starting Logical Block Address and check that it's
* not too big */
@@ -1728,8 +1730,11 @@ static int do_write(struct fsg_dev *fsg)
curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
return -EINVAL;
}
- if (fsg->cmnd[1] & 0x08) // FUA
+ if (fsg->cmnd[1] & 0x08) { // FUA
+ spin_lock(&curlun->filp->f_lock);
curlun->filp->f_flags |= O_SYNC;
+ spin_unlock(&curlun->filp->f_lock);
+ }
}
if (lba >= curlun->num_sectors) {
curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;