From: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> Bring a strict way to get the 'ro' parameter from the user. The patch followed by this one adds another boolean parameter. To be consistent Michał Nazarewicz proposed to use simple_strtol() in both cases (correspondend discussion in LKML [1]). Due to simple_strtol() doesn't return error in a good way and we have a boolean parameter the strict_strtoul() is used. [1] http://lkml.org/lkml/2010/7/14/169 Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@xxxxxxxxx> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Cc: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/usb/gadget/storage_common.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index a10faec..3bbddab 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -748,9 +748,9 @@ static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr, ssize_t rc = count; struct fsg_lun *curlun = fsg_lun_from_dev(dev); struct rw_semaphore *filesem = dev_get_drvdata(dev); - int i; + unsigned long ro; - if (sscanf(buf, "%d", &i) != 1) + if (strict_strtoul(buf, 2, &ro)) return -EINVAL; /* @@ -762,8 +762,8 @@ static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr, LDBG(curlun, "read-only status change prevented\n"); rc = -EBUSY; } else { - curlun->ro = !!i; - curlun->initially_ro = !!i; + curlun->ro = ro; + curlun->initially_ro = ro; LDBG(curlun, "read-only status set to %d\n", curlun->ro); } up_read(filesem); -- 1.7.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
