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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-20 21:12:25 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-20 21:12:25 -0700 |
commit | 19e36ad292ab24980db64a5ff17973d3118a8fb9 (patch) | |
tree | 175715409a689814e5cd425a98f2d2d47f82addf /drivers/usb/gadget/function | |
parent | e10abc629f38efd9b6936cf3612583cc846104d9 (diff) | |
parent | 60d5794fe5a50d02f4a0df84b45910a4dfa8b487 (diff) | |
download | linux-19e36ad292ab24980db64a5ff17973d3118a8fb9.tar.gz linux-19e36ad292ab24980db64a5ff17973d3118a8fb9.tar.bz2 linux-19e36ad292ab24980db64a5ff17973d3118a8fb9.zip |
Merge tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here's the big pull request for USB and PHY drivers for 4.7-rc1
Full details in the shortlog, but it's the normal major gadget driver
updates, phy updates, new usbip code, as well as a bit of lots of
other stuff.
All have been in linux-next with no reported issues"
* tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (164 commits)
USB: serial: ti_usb_3410_5052: add MOXA UPORT 11x0 support
USB: serial: fix minor-number allocation
USB: serial: quatech2: fix use-after-free in probe error path
USB: serial: mxuport: fix use-after-free in probe error path
USB: serial: keyspan: fix debug and error messages
USB: serial: keyspan: fix URB unlink
USB: serial: keyspan: fix use-after-free in probe error path
USB: serial: io_edgeport: fix memory leaks in probe error path
USB: serial: io_edgeport: fix memory leaks in attach error path
usb: Remove unnecessary space before operator ','.
usb: Remove unnecessary space before open square bracket.
USB: FHCI: avoid redundant condition
usb: host: xhci-rcar: Avoid long wait in xhci_reset()
usb/host/fotg210: remove dead code in create_sysfs_files
usb: wusbcore: Do not initialise statics to 0.
usb: wusbcore: Remove space before ',' and '(' .
USB: serial: cp210x: clean up CRTSCTS flag code
USB: serial: cp210x: get rid of magic numbers in CRTSCTS flag code
USB: serial: cp210x: fix hardware flow-control disable
USB: serial: option: add even more ZTE device ids
...
Diffstat (limited to 'drivers/usb/gadget/function')
-rw-r--r-- | drivers/usb/gadget/function/f_fs.c | 2 | ||||
-rw-r--r-- | drivers/usb/gadget/function/f_mass_storage.c | 36 | ||||
-rw-r--r-- | drivers/usb/gadget/function/f_mass_storage.h | 2 |
3 files changed, 16 insertions, 24 deletions
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 15b648cbc75c..73515d54e1cc 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -651,7 +651,7 @@ static void ffs_user_copy_worker(struct work_struct *work) if (io_data->read && ret > 0) { use_mm(io_data->mm); ret = copy_to_iter(io_data->buf, ret, &io_data->data); - if (iov_iter_count(&io_data->data)) + if (ret != io_data->req->actual && iov_iter_count(&io_data->data)) ret = -EFAULT; unuse_mm(io_data->mm); } diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index acf210f16328..5c6d4d7ca605 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -2977,25 +2977,6 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, } EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string); -int fsg_common_run_thread(struct fsg_common *common) -{ - common->state = FSG_STATE_IDLE; - /* Tell the thread to start working */ - common->thread_task = - kthread_create(fsg_main_thread, common, "file-storage"); - if (IS_ERR(common->thread_task)) { - common->state = FSG_STATE_TERMINATED; - return PTR_ERR(common->thread_task); - } - - DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task)); - - wake_up_process(common->thread_task); - - return 0; -} -EXPORT_SYMBOL_GPL(fsg_common_run_thread); - static void fsg_common_release(struct kref *ref) { struct fsg_common *common = container_of(ref, struct fsg_common, ref); @@ -3005,6 +2986,7 @@ static void fsg_common_release(struct kref *ref) if (common->state != FSG_STATE_TERMINATED) { raise_exception(common, FSG_STATE_EXIT); wait_for_completion(&common->thread_notifier); + common->thread_task = NULL; } for (i = 0; i < ARRAY_SIZE(common->luns); ++i) { @@ -3050,9 +3032,21 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) if (ret) return ret; fsg_common_set_inquiry_string(fsg->common, NULL, NULL); - ret = fsg_common_run_thread(fsg->common); - if (ret) + } + + if (!common->thread_task) { + common->state = FSG_STATE_IDLE; + common->thread_task = + kthread_create(fsg_main_thread, common, "file-storage"); + if (IS_ERR(common->thread_task)) { + int ret = PTR_ERR(common->thread_task); + common->thread_task = NULL; + common->state = FSG_STATE_TERMINATED; return ret; + } + DBG(common, "I/O thread pid: %d\n", + task_pid_nr(common->thread_task)); + wake_up_process(common->thread_task); } fsg->gadget = gadget; diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h index 445df6775609..b6a9918eaefb 100644 --- a/drivers/usb/gadget/function/f_mass_storage.h +++ b/drivers/usb/gadget/function/f_mass_storage.h @@ -153,8 +153,6 @@ int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg); void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, const char *pn); -int fsg_common_run_thread(struct fsg_common *common); - void fsg_config_from_params(struct fsg_config *cfg, const struct fsg_module_parameters *params, unsigned int fsg_num_buffers); |